Background of Technology Project Essay

The Project to be studied is an implementation of a work assignment and tracking system in an IT department in a medium sized company. The IT Department before the project was started, had undergone a management change and a reorganization due to corporate cost cutting and restructuring. The previous structure of the IT organization was teams of people that support specific applications in the system, and the business users of a particular application contacted the team assigned to their application for system enhancements and support. There was no system for managing and tracking projects and tasks, and it was left to the managers of each team to handle project prioritization, assignment and tracking. This structure was changed to a pooled resource structure where IT staff people were grouped by functional areas (such as mainframe support group, pc support group, web applications, etc). The IT structure was no longer hierarchical and the work was no longer handed down in a top down approach thus creating a need for a systematic way of managing people and tasks to function effectively. SDLC (Systems Development Life Cycle) The Life Cycle for this particular project did not exactly match the order of the phases as described in the Systems Development Life Cycle concept. Because of the immediate reorganization of the IT organization, current projects encountered delays and the IT procedures and tasks were disrupted. This prompted a need for a quick reshuffling of work between the new groups and a quick and dirty way to manage the work at hand and incoming work until a better system is implemented. Initiation The initiation of a system (or project) begins when a business need or opportunity is identified. This happened for this project when a CIO was appointed to head the new IT organization and was asked to reduce head count by pooling the resources while at the same time still provide timely and effective service to the business users of the IT systems and applications. System Concept Development Phase In this phase of SDLC, the business need has been approved and the approaches for accomplishing the concept are reviewed for feasibility and appropriateness. Several approaches were considered for tackling the problem in the IT department. The first approach was an Excel spreadsheet to list all IT personnel and their assigned tasks but this turned out to be too cumbersome and hard for several persons to use. An in-house developed web based system was also considered and was in fact implemented but was cancelled since it was not flexible enough to handle the different tasks of the different IT groupings and the different sources of work requests. The last approach was either to buy an existing package that would fit the requirements and customize it for the IT organization’s structure and procedures or develop one in-house. Planning Phase In the planning phase, the concept/approach is further developed to describe how the business will operate once the approved system is implemented, and to define project resources, activities, schedules, tools, and reviews to ensure the products and /or services provide the required capability on-time and within budget. The planning phase for this particular project was being done while simple solutions were being used and implemented since there were time constraints and something had to be in place right away. A team was assembled to look into existing applications within the company or packages out in the market that would fit the requirement and assess its flexibility and long term viability for the organization. That team also had to come up with a process flow of how work will be handled in the new IT structure to help in the use of the short-term solutions and to help in finding a long-term solution. Finally, two long term approaches were proposed. One was that of customizing the packaged software that was currently being used by the Help Desk to track PC and Mainframe work requests for PC Technicians and Mainframe System  Programmers, which was from a company called Remedy. The other was to develop a work flow system in-house. Requirements Analysis Phase In this phase, functional user requirements are formally defined and delineate the requirements in terms of data, system performance, security, and maintainability requirements for the system. The functional user requirements for this project detailed all the different tasks that an IT organization performs and the information that needs to be tracked for each such as requestor, status, assigned IT person etc. One of the main requirements gathered was that of accessibility of the work flow system. Different people will be entering work requests such as business users and help desk personnel and the user interface and performance requirements for the two types would be far different. So the chosen system should have flexible interfaces and need to communicate work status and results back to the requester in a medium that is accessible company wide. Another main requirement is that the system can be implemented quickly and should be flexible enough to easily add features in the future. Design The physical characteristics of the system are designed during this phase. For this project, after reviewing the requirements, the only option that would work was an out of the box solution such as the Remedy Action Request System. Since it was already being used by the Help Desk team, it has already proven itself as a flexible and reliable system to use. As a help desk software it allows entry of work request, assigns work, allows a way to log the progress of a request and stores all the history regarding a request. Design was simply a matter of finding out the customizable options and features in Remedy and designing it for the different IT groups formed. Since help desk work was different as compared to application development work, two type of request were designed and one was for support/problems and one was an enhancement to the system or major project that have subtasks and  involved lots of people with different roles and responsibilities. For the IT staff a client server platform was needed for faster execution, and for accessibility and ease of use, a simple web-based interface was designed for the business users since they don’t need to see too much detail. Since company wide communications was done through email, work assignment, status and results need to be communicated through this medium. Development, Integration , Test and Implementation Phase The four phases for this project was combined into one because of the time constraints and since it was a packaged software approach and the main components no longer needed development and testing. Most of the development involved loading tables that the package uses such as logon ids, departments, user data etc, and the customization of the user interfaces. The necessary components of Remedy were installed and hooked up with the web servers and the email system. Before final rollout, it was given a trial basis by one representative in each IT group and finalized based on the recommendations of each representative. Once the work flow system was ready, the IT staff were trained on how to use it and how work should flow through the organization. Conclusion The project as a whole went through a couple of cycles of the SDLC due to different implementations. But the final result was relatively successful since it incorporated the ideas that Trepper suggested in his article â€Å"Getting an edge on the competition† which was about process management. According to Trepper, process management † should also cover the establishment of actual development phases and activities, creation of a workflow among participants, and selection and implementation of tools and techniques best suited to the task.† This was accomplished by the Remedy AR system. The customized Remedy AR System also incorporated the two principal source of best practices as listed by Trepper which is industry best practice and ones  developed within the company. The Remedy AR System already had the industry best practice since it is a widely used system and the company best practices were incorporated through the customization of the system based on recommendations of the different IT groups.

Why Some Governments Are More Willing Than Others To Help Tackle Climate Change:

Climate change is the significant change in the earth’s climate during a period of 30 years. Some governments may be more willing than others to help tackle climate due to advantages and disadvantages for their countries.Some governments may not agree to tackle climate change as it could affect their economy. An example of this are NCI’s, for example China. China is behind the mass production of many products therefore their carbon emissions are very high. Tackling climate change may not be in the interest of China as it could mean a negative affect on the countries growth and industrialisation. This may be why some governments may be more willing than others to help tackle climate.Developing countries may also be reluctant in tackling climate change as they may argue that it is the responsibility of MEDCs as they are the one’s who emit the most carbon dioxide. They may believe that as they are not the one’s contributing highly to climate change they shoul d not invest money into tackling it. This money could be used for things such as food, clothing and medicine which they may believe are more important than helping the climate. Why should developing countries have to suffer for the damaged MEDCs are doing just to live luxurious lives. This is why developing countries may be reluctant to tackle climate change.Some countries such as Norway are more willing to tackle climate change. This is because they believe it is in their people’s interest to tackle climate change as preventing climate change now will make a huge beneficial impact in the long term. â€Å"Norway, UK, U.S. Allocate $280 Million to Stop Deforestation†. Norway has already started investing money to tackle climate change, this because of pressure from the people in Norway, to avoid conflict the government has seen it is in their best interest to listen to their people and invest money in stopping climate change. This may be why some governments may be more willing than others to help tackle climate.Some LEDCs may want to tackle climate change as it will be very beneficial in the future. This relates to countries such as the Maldives and Bangladesh. Both countries are low laying countries and if the impacts of climate change keeps getting worse than both countries are at risk of being of being underwater due to the huge increase in sea level rise. By tackling climate change they are taking away this risk. Also it is in the interest of other countries to help them as losing a lot of land due to flooding will mean loss of huge amounts of space.Bangladesh is densely populated if it were to lose its land; the people would need to move to other countries taking over their land and space, ultimately increasing their chance of natural disasters. Also Maldives is a country where the government want set an example, to show what it is like to be carbon neutral. Therefore by tackling climate change now they could start a whole new revolution hav ing a very positive impact on the world.Countries such as the Philippines will be very eager to start tackling climate change now, especially because of recent events. The government has seen the consequences of not taking action during hurricane Hyan; where huge scales of damage occurred. If the Philippines had tackled climate change before they may have been able to save many lives. Therefore countries such as the Philippines may be more willing than other to tackle climate change.

Substance abuse among the older adult Research Paper

Substance abuse among the older adult - Research Paper Example Drugs prescription is one of the commonly abused substances, and led to the death of most elderly persons. Older adults who are affected by this abuse are seen with negative effects. Some of them were not given treatment and remained untreated until they die. Thus, this paper seeks to investigate how services and facilities--designed to at least save the patients from death--are delivered. Further, this paper identifies commonly abused substances and their effects. Commonly Abused Substances 1.1 Alcohol Alcohol use among older adults is not rare as it is one of the causes of severe diseases to them. In the United States, there is an approximately 2.5 million older adults that have been found out to be alcohol drinkers, and 21 percent of hospitalized adults aged of over 40 have been diagnosed of alcoholism (Blow, 1999). Not only older men have been found to be alcohol drinkers but also women, and became more dependent to alcohol. Myers et al. (1984 as cited in Blow, 1999) stated that older men are more inclined to alcohol drinking than older women. Dependency on alcohol becomes a serious problem but is not given proper attention and treatment. Older adults, who drink alcohol whether in a binge or heavy manner, have seen to have negative psychological and emotional experiences. Alcohol drinkers can be of two classifications, binge drinkers and heavy drinkers as far as the frequency of alcohol intake is concerned. Blow (1999) further stated that binge drinkers are those people who drink alcohol occasionally like once per week while heavy drinkers consume alcohol as often as daily or five drinks per week (p. 22). However, no matter what the frequency is, the problem still lies on the alcohol dependency among older adults. Alcohol, as a substance, is being abused by elder men and women and strikingly became leading causes of fatal diseases like cancer, diabetes, and liver illnesses. 1.2 Cigarette and Tobacco Cigarette and tobacco are widespread in the whole world an d have been taking its rank to the top place of most deadly substances. These substances are known to be the leading cause of lung cancer. Not only younger people are likely to get deadly diseases but most especially the older ones, as their body are not that strong in terms of immunity. Most deaths in the United States were driven by tobacco smoking and are increasing every year. One out of every five Americans died because of their excessive tobacco use. In addition, survey indicates that the number of older adults who use tobacco or cigarette have declined after reaching the age of 65 and over (Blow, 1999, p. 25). Although the number has sharply decreased, actually this does not mean that the problem with smoking was eradicated. 1.3 Drugs Older adults in their dawning age are likely to intake drugs which are intended to cure their sickness, but a large number of them have been found out to use drugs not prescribed by physicians. This contributes to the aggravating cases of substa nce abuse, and must be brought to a greater concern. In addition, the Center for Substance Abuse Treatment found out that in the year 2000, 25-28 percent of older adults used a psychoactive medication, and 20 percent took a tranquilizer on a daily basis (Blow, 2002 as cited in Yoshida, 2006). Further, illicit drugs are also widespread anywhere in the globe. According to Jinks and Raschko (1990 as cited in Yoshida, 2006) prescription drug abuse has reached an average percentage ranging from 30 percent to

Hypothesis testing Essay Example | Topics and Well Written Essays - 250 words

Hypothesis testing - Essay Example There is a procedure followed in hypothesis testing. The first step involves the stating of both the null and alternate hypothesis. The hypothesis is stated in a manner that they are mutually exclusive. The second stage is the determination of the level of significance (Lehmann, 2004). The higher the level of significance, the higher the precision attained. The sample size is then determined to allow for the collection of data. The size of data will determine the type of test conducted. After the collection of data, one moves to the stage of data analysis. In this stage, the value of test statistics is calculated e.g. z-value or the t-value (2012). The analysis of the calculated value is made by use of the statistical tables. The table is used to determine if the calculated score falls within the acceptance or rejection region (Lehmann, 2004). The final stage is then made depending on the location of the score. If the calculated value falls in the rejection region, the null hypothesis is rejected implying that there is significant variation in the observation made. Two kinds of error can be made in hypothesis testing: type one and type two errors. Type one error is that which leads to the rejection of null hypothesis which is true whereas type two error is the error of accepting a false null hypothesis. In conclusion, the stages in hypothesis testing if well followed makes the hypothesis testing easy to comprehend and make statistical decisions. Hypothesis testing is therefore essential in analyzing data to determine its validity and truthfulness hence important in making statistical

Journal Articles Summaries Essay Example | Topics and Well Written Essays - 1000 words - 1

Journal Articles Summaries - Essay Example rise, as Latin America had utilized the forces of globalization a lot better than the remaining parts of the United States of America before the 1920s. In the decade of 1930, however, the Latin American policies started to edge away from globalization and it was a very critical time period in Latin American history. This article outlines the problems and their possible explanations which are found not from the increase in output from protection as visualized generally, but in the needs of profits, coming up with strategies to respond to the tariffs of their trading partners, and the call for reimbursing those participants of globalization who did not succeed (Coatsworth, John H, and G W. Jeffrey). The article, ‘Always Protectionist? Latin American Tariffs from Independence to Great Depression’ is written by John H. Coatsworth and Jeffrey G. Williamson and is a part of the Latin American Studies compiled and published by Cambridge University Press. The article starts off by exposing the fact that a majority of people do not in a good way, except some groups in Latin America including historians of economics. That fact is, import and export taxes and tolls were much, much higher in Latin America than any other part from the 1860s to 1914, when the First World War ensued. The decades leading to the First World War, also known as the first globalization boom or belle à ©poque of Latin America, were the years in which the tariffs in Latin America kept increasing. Knowledge of this fact gives rise to an economical as well as political question: What caused the taxes to be so high BEFORE the Great Depression and not AFTER it? It is a known fact that he high taxes are the cause of a misshaped local economy and it stunts the economy’s growth with respect to performance as well. But why the tariffs were so high was the real question. Latin America was believed to have made the most of pre World War One belle à ©poque and was way ahead of others in the process of

Southeast Medical Center Case Study Essay Example | Topics and Well Written Essays - 500 words

Southeast Medical Center Case Study - Essay Example In addition, other development projects resulted in the establishment of freestanding rehabilitation center with a 59 bed capacity. Moreover, SMC management also established a physicians’ building that served as their office. Besides, in 1989 the hospital acquired medical helicopters and expanded its trauma services. Furthermore, the hospital has grown into a neonatal, transplant care, and burn center within the State. Other strategic plans have led into SMC expansion into a large referral center for both local and international health care. The hospital boasts of more than 800 beds for acute care. In addition, development projects have resulted into establishment SMC community centers in various locations across the State. Consequently, the hospital has specialized in the provision of unique, sophisticated medical services that attracts numerous foreign patients. Moreover, SMC provides ambulatory services and facilities for health plan. The hospital operates an HMO health plan for charity care patients. The health care plan acts as a Medicaid insurance for States citizens who cannot afford health services (Wolper, 2011). SMC has also undergone various changes in its governance form public hospital to a private institution. In 1920s hospital board managed the hospital that later changed to a public authority. After board of trustees voted to turn the hospital over to private management, SMC has remained a not-for-profit academic health facility. Despite expansion of SMC, the hospital struggles from financial shortage. Shortage of finances has resulted from State’s decision of not providing a subsidy for SMC. Shortage of finances has resulted into the hospital loss of competitive advantage in the market. In addition, SMC cannot afford modern facilities relevant for teaching, research, and provision of health care. Consequently, SMC decided to increase costs of medical

NR 6210 Practicum Experience Summery Assignment Example | Topics and Well Written Essays - 750 words

NR 6210 Practicum Experience Summery - Assignment Example To start with, perinatal depression is a condition that affects women leading to major or minor depression either during the pregnancy period or within 12 months after giving birth. This is a common occurrence in women and studies have shown that minority and low-income women register most cases in the documentation patterns of screening and referral for postpartum depression. Therefore, as part of my behavioral objectives, I investigated problems associated with EPDS screenings and referral resources among low income perinatal clients in FCM. In the first day of the practicum, I was introduced to the program coordinator of FCM, Mrs. Damaris Montano who acted as my preceptor during the practicum period. The introduction was important part of the practicum since I was able to learn what it takes to run the department since my preceptor was preparing for performance review of the department that was to be carried out later. I also got a glimpse of how the internship will be carried out in the department. On the second meeting with my preceptor, I learned the administrative roles of MPH nurse at a public health department from the programs she supervised and coordinated. My receptor informed me that she coordinated 6 programs and that she ensured smooth running of the programs as part her responsibilities. To achieve this, she conducted weekly meetings with assistant supervisors in order to discuss issues concerning operation of the program. In addition, we decided to be meeting on Thursdays in preference of FCM program so that I could start reviewing old postpartum EDPS. On another aspect, I also identified some leadership gaps that could be addressed in management of FCM program. In one of the Health Works program staff meeting, a case worker presented an issue to my preceptor that involved a pediatric doctor who did not respond as required on an issue

Exam on Business Essay Example | Topics and Well Written Essays - 2250 words

Exam on Business - Essay Example The research was based on the premise that both the layout and location of Ikea stores were indeed intentional, but only in so far as they serve the function of operations management to advance the strategic thrust of the firm. The strategic goal of Ikea is to provide quality furniture at reasonable cost; its target market includes people of all walks of life, particularly those who could not afford the high cost of conventional, ready-made furniture. Its product design employs knocked-down assembly type furniture which may be stored in compressed flat packs. The product design and manufacturing process are all intended to serve the principal philosophy behind Ikea – to reduce production costs while maintaining quality, and engaging the customer in the production process by leaving the assembly of the furniture to them. The location and layout of Ikea stores are but an extension of the production strategy. The flat pack design of the furniture assembly kits enables their stora ge in compressed areas; a system that facilitates quick location and identification of particular products supports the warehouse-type storage area adjacent to the show area. The store layout is consistent with the firm’s self-service philosophy, so customers decide on their choice of purchases in the show area and locate their own goods in the storage area. As mentioned in the report, the principal complaint of consumer groups is that Ikea’s layout forces customers to go through their entire display and entices them to make impulse purchases against their intentions. Research fails to substantiate this allegation, however. Customers who do not wish to buy anything are certainly not forced or intimidated into doing so. It just happens that visitors to Ikea usually find something else that they decided they needed or wanted. The layout therefore facilitates customers’ view of Ikea products to enable them to find what they may not have intended to purchase at the beginning, but which they considered they wanted to buy anyway. The layout helps customers decide what to purchase, it does not compel them to purchase – at least, not any more than any other store that markets retail merchandise. In the choice of location, principles of operations management require the consideration of the following factors: adequacy of market potential, accessibility to customers, potential for growth, business interception, attraction to customers, compatibility with surroundings, minimisation of competition, and site economics. Of these, the principal complaint of competitors has to do with the minimisation of competition. That this has been accomplished by Ikea’s entry into the locality is not disputed; the question is, whether it has been done ethically or not. Whether unethical practices were employed in getting local administrators to permit Ikea to open at their locations is not supported by proof, and to decide in this direction is prejudici al not only to the company but moreso to the local authorities. As far as the research uncovered, Ikea’s location in the locality afforded the immediate community or city significant advantages in terms of employment and access to reasonably priced goods and services. The location of

Business event Operation Essay Example | Topics and Well Written Essays - 2500 words

Business event Operation - Essay Example The event seeks to deliver an understanding to the customer segments that the newly-developed vodka emanates from the company’s devotion that compelled its staff to embark on a two-year research and development to produce the sophisticated wine with a 100% wheat ingredients (Coulter 2010, p. 5). In order to reach the target consumer groups, the observation has been that the Cavendish London hotel’s eco-friendly practices will match the firm’s need to provoke the understanding that the company is indeed devoted into emulating sustainable measures in every aspect that it will relate to during its endeavours. The choice of holding the event at the Cavendish London matches the marketing and consumer attraction needs since the target high-end clientele will perceive the important aspects outlined in the product and conceive the reality of the attributes since the acceptance of the product’s launch at the hotel will emanate from the evaluations undertaken by the venue’s management to identify the products eco-friendly aspects (Van der Aalst, 2008, p. 190). The four star hotel is located at the city’s commercial centre and its provision of environmentally friendly attributes relate to the newly developed vodka’s sustainability measures and consumption patterns in the target consumer markets (Corrà   2010, p. 2). The emphases that the venue is an appropriate platform emanate from the provision of large conference rooms that can comfortably accommodate the estimated 100 number of guests. Further, the Cavendish management will provide the required dining and enterta inment room, and following the consultations made, the Big Ben Conferencing room and the immediate rooms will be allocated to suit the event’s needs. The two parties have agreed to enter into a mutual agreement in hosting the new vodka launching event. The Cavendish London and the Maitre de Chai profess similar sustainable measures despite their

Marketing Audit Essay Example | Topics and Well Written Essays - 3250 words

Marketing Audit - Essay Example However, this was a great challenge to Nokia, specifically because new companies began to emerge, that were able to produce cheap mobile phones, which were also innovative. During the 21st century, Nokia began losing competition to mobile phone giants such as Apples, Samsung, and the numerous Chinese mobile companies that produced cheap, but innovative mobile phones (Sundback, 2008). One of the major reasons as to why Nokia was losing competition is based on the fact that it had a poor marketing strategy. Nokia was unable to effectively communicate its proposition, and what their products stand for. This is an aspect that Apples and Samsung have managed to communicate effectively in their marketing campaigns. Furthermore, the advertisements of Nokia are not consistent, communicating messages which are not relevant to their target market (Barnes, 2011). It is important to understand that to achieve success in marketing, it is essential for a business organization to highlight how their products serve the needs of their customers. On this note, failure of Nokia to achieve market growth is not because of low quality products, but mainly because of their poor marketing strategies. Nokia is a company in the telecommunication industry. In reviewing the marketing strategy of Nokia, there is a need of concentrating on the strategy that the organization employed in marketing its Nokia brand of mobile phones (Glotz, Bertschi and Locke, 2005). This report will provide a critique of the marketing strategy of the organization, identifying various weaknesses that the company needs to improve on. The main intention of providing a critique on the marketing strategy of Nokia is to make a recommendation on how to improve its marketing mix, in order to be an effective competitor in the telecommunications industry (Häikiö, 2002). On this basis, this report is a critical analysis of the marketing strategy of Nokia

Withholding Information Essay Example for Free

Withholding Information Essay It is frequently advisable for those in positions of authority in government to withhold information from general public Some information the public has the right to know while other information is better to be withheld. There are plenty of reasons why it is better not revealing information. Withholding information that may put the population in danger would be better than revealing information which would bring chaos. On the flipside, transparency and honesty between the government and the public are very important. Transparency is essential in order for a democracy to function and honesty is important in cases when there is need for strong relations to be created. And although I support the idea of freedom of information, the general public will never be educated enough to maintain consensus and national problems. In these cases withholding information helps to ensure stability in terms of national security, preserving the peace and well-being. The main reason authority keeps information is the fear from criticism and disapproval. A rational society would never be satisfied with vague information and would want to take part in the decision-making process. Government has a lot of information which the people may have an interest in but still some of this information is dangerous. Things like war strategies and secret missions need to be withheld. Being kept in the dark on some things as long as its truly for the good of the nation and not for someone’s benefit is acceptable. For example if government find the cure for cancer but decide that it would ruin pharmaceutical companies and chose not to reveal this information it isn’t right. On the other hand, there is a lot of information which public doesn’t deserve access to. Like information that endangers the government. Another reason for withholding information could be to cover mistakes and not causing discontent. The government always makes big promises and eventually it will have to fulfill some of them. If government promise to reduce the crime rate in 30% within a year and don’t follow the plan it will lose it’s credibility. I think that the idea some information to be withheld is valid. However, information that would improve the living standard of people or information which is of great importance for the future of humanity, in my opinion shouldn’t be kept. There is no clear moral answer here. When there is too much that is at stake, we can’t say that information should always be free. Should it benefit the public to know how their government works, or it should benefit the government to have the full control over our lives. Im not so sure.

The Child By Tiger By Thomas Wolfe Essay Example for Free

The Child By Tiger By Thomas Wolfe Essay Insane Slave Murders Citizens! The headlines would boldly exclaim this phrase if an event such as that happened today. The central event of the plot is a violent action in The Child by Tiger by Thomas Wolfe. The author gives significance to the occurrence by making it reveal a general truth about human experience. This universal theme becomes evident through many aspects of the story, which can be analyzed and evaluated to discern their purpose. These following paragraphs will support the judgement that a person in general can contain two worlds inside their psyche: good and evil. If the balance of these two is upset, tremendous or horrible things can happen. When The Child by Tiger first begins, Dick Prosser is established as a well-rounded, almost perfect individual. Although he is a slave, that doesnt restrict his amazing talents and abilities. As the story progresses, however, a stark contrast becomes evident in Dick Prossers presence. The first indication of the revelation of an underlying theme is the shroud of mystery veiled over Dick Prosser. For example, in the first few pages of this story, a character named Pansy Harris is introduced. She is portrayed as a jovial, good-hearted, Negro woman that assists with the kitchen duties in her owners home. Her disposition quickly changes to quiet and somewhat mournful upon encountering Dick Prosser. She informs her host family that she is leaving, which seems as if her departure is without any reason whatsoever. Secondly, a dark, enigmatic presence surrounded the narrator when he would see Dick. The narrator (once referred to as Mr. Spangler) speaks of the red in Dicks eyes whenever Dick would emerge from his living quarters. This was presumed to be an intoxication of the spirit because Dick was a godly man. The appearance of the worn-out Bible on his table was evidence that the book had been used often. Spangler often refers to Dicks cat-like abilities to sneak up on people, which deeply troubled him. Dicks moaning of hymns and another aspect pertaining to the Bible frightened the narrator. Dick would sometimes put together a weird jargon of Biblical phrases, perhaps constructing his own meaning of the passages. Obviously, the author is trying to create a direct contradiction to Dicks previous character. The significant violent action becomes almost predictable with the next few events. On Saturday a little after eight in the evening, the narrator along with the Shepperton boy noticed Dicks door to his basement room was slightly open. They entered and found a rifle with ammunition lying  on the small table is Dicks perfectly tidy lodging. Dick crept upon the boys like a cat, his red eyes glaring. This incident frightened the boys. While everyone in the town was asleep that night, Dick was not. The town bell rang, awaking Spangler in the process. When the narrator had heard that a Negro man had murdered several people, he knew immediately that it was Dick Prosser. Earlier that evening, Dick had been at Pansys home. Her husband came home, drank with Dick for a short while, then proceeded to fight with him. Pansys husband was killed. Perhaps it was out of jealousy or a conspiracy between Pansy and Dick; nonetheless, Dick murdered him. This initiated Dicks killing spree. He murdered men because they posed a threat to Pansy, first; then because people were a danger to him. What was the purpose of the strange chronological structure? It was very interesting how the author used a different sequence of order in telling this story. The whole story is a twenty-five year flashback, yet to recount the actual events that happened the night of the murders, Wolfe returns to the present time. What importance does this removal in time have for the meaning of the story? It is evident that the removal in time of the narrator has had an effect on him. He could take time to put things into perspective and delve beyond the surface to contemplate the Dicks true motives. Even during the time period that the incidence occurred, Spangler understood the mentality of the people. He said, For we would still remember the old dark doubt and loathing of our kind, of something hateful and unspeakable in the souls of men. We knew that we should not forget. What was the intent of Wolfe to constantly mention the Army? How was that pertinent to Dicks actions and behavior? There were several references in the story to Dicks affiliation with the Army. A great example is paragraph 102 on page 36 which states, as if he were seated on his co t in an Army barracks, he unlaced his shoes, .stood up like a soldier. What was the significance of this event, especially when Dick was a mere ten yards away from freedom? It symbolized submission to fate. All humans are subject to some sort of fate, and Dick believed that his destiny was of a Biblical nature. Perhaps he would rather die willingly than to be hunted down by the police for the rest of his life. How Dick readily gave up contrasted to the way that the whites treated his body. He knew that he was subject to fate, yet the whites completely destroyed his body with almost 300 shots. Also, verse four of the  psalm on page 38 explains the significance of Dick taking off his shoes. It states that thou art with me. Dick might have misconstrued Bible passages. Perhaps something clicked in his head and made him recall bits of his previous character: the good Dick Prosser. Are voices of reason always drowned out by a mob? Hugh McNairs voice was certainly ignored. A minor character, Hugh desperately tried to persuade the mob to go by law, order, and justice. They completely disregarded the righteous things that he said, and proceeded to throw a brick in his direction. Hence, it is apparent that there were others who saw the unjust attitude of the townspeople besides the narrator and the other boys. These paragraphs have supported the judgement that a person in general can contain two worlds inside their psyche: good and evil. If the balance of these two is upset, tremendous or horrible things can happen. In this case it was the latter. Conceivably, things could have turned out different for Mr. Dick Prosser had he been brought up in a different community. Subtract the potential for racism, prejudice, discrimination, and Dick might have been another star football player or the highest-ranking officer in the military. The possibilities could be endless if one would disregard their limitations.

The Strategy Of Managing Human Resources

The Strategy Of Managing Human Resources Strategy of managing human resource refers to the how ADIDAS treat and manage the employees. With the strategies ADIDAS able to maintain the loyal of employees to the ADIDAS and the willingness of employees to do the hard job in order to enhance the productivity of the organisation. Furthermore, employees are the internal customer of ADIDAS. So, ADIDAS need to satisfies the employees before satisfies the external customer. External customers refer to the people that purchase the product produce by ADIDAS. When the internal customers of the organisation satisfies the treatment of the organisation the external customers also will satisfies the product of ADIDAS. The next part of this assignment will discuss the strategies that ADIDAS use. 2.1) Talent management Talent management refers to retain the employee in the ADIDAS. So, ADIDAS use this strategy to develop the old employees that have the opportunities to their career. By using this strategy ADIDAS able to hold the quality employees stay in the organisation and built up the loyalty of the employees. Besides that, talent management also include recruitment. Recruitment refers to the process of recruit and selecting the qualified new people that in order fit to the job 2.2) Employee-oriented leadership Employee-oriented leadership refers to the communication between the manager and the subordinates. By using this strategy ADIDAS able to know the employees need and want. This is because this strategy consists of employee feedback system. Employeeà ¢Ã¢â€š ¬Ã¢â€ž ¢s feedback system refers to the satisfaction level of the employees to the job. The employees are the internal customers of the organisation, when the employees satisfy their job the productivity of the organisation will automatically increase. This is because the organisation given a good environment to the employees in order to satisfy the employees and the employees will do the hard job to the organisation to as the repay to the organisation. 2.3) Remuneration Remuneration means the salary of the employees get month by month. The salary related to market requirement and performance level. That means ADIDAS set the salary according with market requirement and performance level. The ADIDAS on time pay the salaries in order to give the good reputation of the organisation. When the organisation do not delay paid the salaries to the employees the employees will loyal to the organisation this is because the employees will feel the safety in the organisation to work. 2.4) Bonus In ADIDAS the remuneration consists of bonus. In ADIDAS the individual performance will related to the remuneration. Bonus means the company pay extra money to the employees to motivate the employees. The main purpose of given bonus is to motivate the employees. Motivation is psychological process giving behaviour purpose and direction (Kreitner,2009, p.369 ). By given the bonus the employees will put more effort and hardship to the job. 2.5) Long-term incentive programmes (LTIP) This is specialising for senior manager, this is three year plans based on the achievement of financial as well as compliance target. So the senior manager that achieves the long-term target of the company will get the bonus. The bonus was depended on the organisation whether the bonus is money or others benefit. 2.6) Performance management Performance management is a feedback for the management team. The management team will observe to the employees in order to take care the employees and if the employee does not do well in the jobs the management team will send the employee go to training. Furthermore, certain employee did well in their job will get promoted. So, in this strategy the employee able to learn and get the improvement by giving the benefit and training. Furthermore, ADIDAS always looking for the potential employees so, ADIDAS will observe the performance of each employees and give the opportunities to get promote. Besides that, ADIDAS also observe the people that innovative and creative. This is because ADIDAS need the peoples that contain the high imagination people to give the idea to produce the design of the product. So ADIDAS will observe about it and pick the people that have the potential skill switch to the creation and innovation team. ADIDAS found that the people who are having different backgrounds, perspectives and skills can make the best team in order to achieve the maximum creation of the design on the product. Before ADIDAS forming the potential employees into a team, ADIDAS will send the employees to training. This is because the team need contains the different imagination, perception and culture. This is because ADIDAS is a global organisation within the different perception can built up a multi-skill team. With t his the ADIDAS can manage many of the country culture and habit in order to product suitable product to the public. 2.7) Work-life balance Work-life balance is flexible working hour. Flexible time is a scheduling policy in which full-time employees may choose starting and ending times within guideline specified by the organisation ( Raymond A. Noe, Barry Gerhart, Patrick M. Wright, John R. Hollenbeck, 2009, p.106). Every employeeà ¢Ã¢â€š ¬Ã¢â€ž ¢s quality of life should be improved by working to the organisation. So ADIDAS have the responsibility to address flexible working hour. The main purpose of work-life balance is give harmonise of the private and family needs to the employees. So the organisation was think about the benefit of the employees. Furthermore, this strategy able to give the employees a comfortable working hour and with the harmonise family the employees will put more effort in the working hour. As an example the working hour is 8 hours per day. The employees can select their working hour in the day and the lump sum of the working hour 8 hours. If the employee starts working at 11:00AM so the employee leave the organisation in 19:00 PM. Recommendation ADIDAS was looking the professional as the members of the families. ADIDAS treat the employees as their familiesà ¢Ã¢â€š ¬Ã¢â€ž ¢ members, care about the private sector of the employees. So, ADIDAS able to perform well in the market. ADIDAS doing these because ADIDAS was found that when the employees happy the productivity of the organisation will increase rapidly. As the comment to the ADIDAS, ADIDAS should recruit the people that from others competitor. Recruit the quality people from the competitors can decrease the productivity of the competitor and increase the productivity of own. Recruit the quality peoples from competitors is the good ways to find the potential employees if the organisation was lack of such potential employees. Furthermore, the organisation also need to prevent the self employees go the others organisation. For this, ADIDAS was did well this is because ADIDAS consist of flexible of working hour, talent management and performance management. These strategies might build up the loyalty of the employees in order to prevent the employees leave the organisation and work with competitors. Conclusions The strategies use by ADIDAS was aim to giving the benefit to the employees and always think of the employees so, the loyalty of the employees will build up automatically. After that, ADIDAS provides a lots of benefits to the employees by the way the employees will be motivated and the case of absenteeism is very low. When the employees interesting to work, the productivity of the organisation will automatically enhanced. When the productivity was increase the profit of the organisation also will increase so the organisation able to pay more to the employees. When the organisation pays more to the employees the employees will be motivated. Finally, ADIDAS is a very good organisation that works in ADIDAS, the benefits provides by the organisation was attractive to all the employees. So, the benefits not only giving to the employees but also give the public know that ADIDAS such organisation and work with ADIDAS is suck happy and satisfy. There were the ways and style ADIDAS manage the human resource. ADIDAS was known that when good manage in human resource the benefit to the organisation will increase automatically such as productivity. Lastly, ADIDAS is a nice organisation that consists of many benefit to the employees and hopefully ADIDAS can do better in future and the comment would help ADIDAS be a better organisation.

Chevrolet Advertising :: Marketing Advertisement

Missing Figures/Works Cited Genuine Chevrolet Advertisers create ads in magazines to catch the eyes of readers and encourage them to want to buy the product. Each advertisement includes claims, warrants, and supports, which make the advertisements attractive. For example, in the attached advertisement for Chevrolet Cavalier, each of these ideas used, makes the reader want to go out and buy this car. In the advertisement, there are many catchy phrases and pictures which make the car look very desirable. Furthermore, the general nature of a magazine such as "People," where the ad is found, it attracts people of all types. As displayed in the Chevrolet advertisements, claims, warrants, and supports are used to attract people of all types. Claims in the advertisements are used to try and get people of all types to notice, admire, and eventually go out and buy this car. There are three different types of claims: policy, fact, and value. The claims of policy in this advertisement are similar to most claims of policy in ads, which are, "buy this product." The claims of policy are created by the pretty picture on the opposite side of the page, and the writing on the ad. In the picture, the pretty mountains and bright sun look very inviting to someone who needs sometime to relax. By the desire to have free time, the busy worker will think that the car will get them some free time. Then, they will want to buy the car. The writing includes lines such as, "Finally. After working for what seems like forever, you have some time to yourself." Although this quote really does not have much to do with the car, it attracts the reader who may want some free time. The claims of fact include the statements about how many miles the car can go before needing a tune up and how it fits a low budget. These kinds of claims can attract people of all kinds, mainly people looking to spend little on a car for themselves or for their children. The claims of value state that this car can take you wherever you want, and that "even though going out during your free time may cost a lot, getting there won't." From these examples of claims of policy, fact, and value, the car looks very attractive to a reader.

Faustus Study and Opening Speech -- Doctor Faustus Plays English Lite

Faustus' Study and Opening Speech The scene now shifts to Faustus’s study, and Faustus’s opening speech about the various fields of scholarship reflects the academic setting of the scene. In proceeding through the various intellectual disciplines and citing authorities for each, he is following the dictates of medieval scholarship, which held that learning was based on the authority of the wise rather than on experimentation and new ideas. This soliloquy, then, marks Faustus’s rejection of this medieval model, as he sets aside each of the old authorities and resolves to strike out on his own in his quest to become powerful through magic. As is true throughout the play, however, Marlowe uses Faustus’s own words to expose Faustus’s blind spots. In his initial speech, for example, Faustus establishes a hierarchy of disciplines by showing which are nobler than others. He does not want merely to protect men’s bodies through medicine, nor does he want to protect their property through law. He wants higher things, and so he proceeds on to religion. There, he quotes selectively from the New Testament, picking out only those passages that make Christianity appear in a negative light. He reads that â€Å"[t]he reward of sin is death,† and that â€Å"[i]f we say we that we have no sin, / We deceive ourselves, and there is no truth in us† (1.40–43). The second of these lines comes from the first book of John, but Faustus neglects to read the very next line, which states, â€Å"If we confess our sins, [God] is faithful and just to forgive us our sins, and to cleanse us from all unrighteo usness† (1 John 1:9). Thus, through selective quoting, Faustus makes it seem as though religion promises only death and not forgiveness, and so he easily rejects religion with a fatalistic â€Å"What will be, shall be! Divinity, adieu!† (1.48). Meanwhile, he uses religious language—as he does throughout the play—to describe the dark world of necromancy that he enters. â€Å"These metaphysics of magicians / And necromantic books are heavenly† (1.49–50), he declares without a trace of irony. Having gone upward from medicine and law to theology, he envisions magic and necromancy as the crowning discipline, even though by most standards it would be the least noble. Faustus is not a villain, though; he is a tragic hero, a protagonist whose character flaws lead to his downfall. Marlowe imbues him with tragic gr... ...here but down, into mediocrity. There is no sign that Faustus himself is aware of the gulf between his earlier ambitions and his current state. He seems to take joy in his petty amusements, laughing uproariously when he confounds the horse-courser and leaping at the chance to visit the Duke of Vanholt. Still, his impending doom begins to weigh upon him. As he sits down to fall asleep, he remarks, â€Å"What art thou, Faustus, but a man condemned to die?† (10.24). Yet, at this moment at least, he seems convinced that he will repent at the last minute and be saved—a significant change from his earlier attitude, when he either denies the existence of hell or assumes that damnation is inescapable. â€Å"Christ did call the thief upon the cross,† he comforts himself, referring to the New Testament story of the thief who was crucified alongside Jesus Christ, repented for his sins, and was promised a place in paradise (10.28). That he compares himself to this figure shows that Faustus assumes that he can wait until the last moment and still escape hell. In other words, he wants to renounce Mephastophilis, but not just yet. We can easily anticipate that his willingness to delay will prove fatal.

Sophocles Antigone :: essays research papers

This paper is an essay on Antigone. The story Antigone is a great Greek tragedy. Sophocles, an ancient Greek playwright, is the author of the story. It is a great story. It is known throughout the world. This essay is going to trace the character of Antigone through the beginning, middle, and end of the story. Antigone is a very strong willed character. In the very first scene of the book Antigone is talking to her sister (Ismene) about how their two brothers (Eteocles and Polyneices) killed each other fighting over the thrown. Antigone is enraged over the fact that Creon (Antigone’s uncle and the new king) has buried Eteocles with military honors but has left Polyneices to rot. Creon has declared that any person who buries Polyneices will be killed, but Antigone doesn’t care. Antigone is driven to bury her brother and she wants her sister’s help. â€Å"Ismene, I am going to bury him. Will you come?†(pg.750 line 30). Ismene is too afraid of Creon to help Antigone. Antigone is determined to bury her brother at any cost, and unlike her sister, she is not afraid of Creon. â€Å"Creon is not strong enough to stand in my way,†(pg.750 line 35). Not even the threat of death is enough to make Antigone afraid of Creon. At this point in the book she is stubborn and self-righteous. Antigone then goes out at night and buries Polyneices. That makes Creon very mad, so he unburies Poylneices and posts guard around the body. The next day a whirlwind kicks up around the guards and Antigone starts to bury Polyneices again. Unfortunately the whirlwind died before Antigone could finish burying him, so she is captured and brought to Creon. Antigone boldly admits to burying her brohter despite the fact that she could be killed. Creon tries to convince her that what she did is wrong by pointing out that Eteocles is her brother and Polyneices is a traitor for attacking the city. Despite the fact that her brother, Polyneices, attacked the city, Antigone still loves her brothers equally. â€Å"His own brother, traitor or not, are equal in blood,† (pg.766 line 110). Antigone enrages Creon by refusing to admit Polyneices fault. Ismene tries to take the blame with Antigone but Antigone refuses her help. â€Å"Yes, save yourself, I shall not envy you. There are those who will praise you, I will have honor too,† (pg.

Grignard Reagent

1598 Organometallics 2009, 28, 1598–1605 CoVer Essay The Grignard Reagents Dietmar Seyferth Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 ReceiVed February 4, 2009 During the past 100 years the Grignard reagents probably have been the most widely used organometallic reagents. Most of them are easily prepared in ethereal solution (usually diethyl ether or, since the early 1950s, THF) by the reaction of an organic halide with metallic magnesium (eq 1).Table 1. Composition of Diethyl Ether Solutions of Various Grignard Reagents at Equilibrium (in mol %), 2RMgX h R2Mg + MgX2a RX in RX + Mg reacn CH3I C2H5I C2H5Br C2H5Cl n-C3H7I n-C3H7Br n-C3H7Cl C6H5I C6H5Br a RMgX 87. 0 43. 0 41. 0 15. 0 24. 0 24. 0 17. 0 38. 0 30. 0 R2Mg ) MgX2 6. 5 28. 5 29. 5 42. 5 38. 0 38. 0 41. 5 31. 0 35. 0 RX + Mg f RMgX (X ) Cl, Br, I) (1) Most of them are stable in ethereal solution (although atmospheric moisture and oxygen should be excluded) and in gene ral are quite reactive.Discovered by Victor Grignard at the University of Lyon in France in 1900,1 their ease of preparation and their broad applications in organic and organometallic synthesis made these new organomagnesium reagents an instant success. The importance of this contribution to synthetic chemistry was recognized very early, and for his discovery Grignard was awarded a Nobel Prize in Chemistry in 1912. Our cover molecule is the monomeric ethylmagnesium bromide bis(diethyl etherate) (1), whose solid-state molecular structure was determined by an X-ray diffraction study by Lloyd Guggenberger and RobertRundle in 1964 using crystals isolated from a diethyl ether solution of a C2H5Br/Mg reaction mixture by slow cooling with a stream of cold gaseous nitrogen. 2-4 Adapted from: Schlenk, W. , Jr. Ber. Dtsch. Chem. Ges. 1931, 64, 734. Wilhelm Schlenk and his son discovered 80 years ago, more than one magnesium-containing species exists in the diethyl ether solution of a Grignard reagent. 5 A redistribution of the substituents on magnesium takes place, and the RMgX species ends up in equilibrium with the two symmetrical species, the diorganomagnesium and the magnesium dihalide: the â€Å"Schlenk Equilibrium† (eq 2). 2RMgX h R2Mg + MgX2 (2) Generally written as â€Å"RMgX† in textbooks, monographs and research papers, the Grignard reagents in ethereal solution are more complicated than this simple formula indicates. As (1) (a) Grignard, V. Compt. rend. Hebd. Seances Acad. Sci. 1900, 130, ? 1322. (b) Grignard, V. Dissertation â€Å"Theses sur les combinaisons organo` magnesienes mixtes et leur application a des syntheses†, University of Lyon, ` ` Lyon, France, 1901. (2) (a) Guggenberger, L. J. ; Rundle, R. E. J. Am. Chem. Soc. 1964, 86, 5344. (b) Guggenberger, L. J. ; Rundle, R. E. J. Am. Chem. Soc. 1968, 90, 5375. 3) A crystalline solid, CH3MgI  · (n-C5H11)2O, was isolated and identi? ed as such by elemental analysis (Mg and I) in 1908 : Zerewitinoff, Th. Ber. Dtsch. Chem. Ges. 1908, 41, 2244. The oxonium structure The species that contain Mg-halogen bonds can be precipitated from Grignard reagent solutions in diethyl ether by the addition of 1,4-dioxane. An insoluble, polymeric 1,4-dioxane adduct is formed, leaving behind a solution of R2Mg5sa useful preparation of dialkyl- and diarylmagnesium reagents. 6 Wilhelm Schlenk, Jr. analyzed the 1,4-dioxane precipitations from a number of Grignard reagent solutions. Assuming that the precipitation is essentially instantaneous, i. e. , that the calculated R2Mg, MgX2, and RMgX percentages re? ect the actual composition of the Grignard reagent solution at equilibrium, Schlenk reported the compositions collected in Table 1. Direct evidence (5) Schlenk, W. ; Schlenk, W. , Jr. Ber. Dtsch. Chem. Ges. 1929, 62, 920. (6) (a) Cope, A. C. J. Am. Chem. Soc. 1935, 57, 2238. (b) As Erwin Weiss found, evaporation of diethyl ether solutions of methyl- and ethylmagnesium bromide and chl oride at reduced pressure followed by heating of the colorless solid residues at ca. 00  °C and 0. 001 mmHg for several hours gave a mixture of the respective pure, solvent-free, polymeric R2Mg compounds and magnesium halides. The solid MgCl2 thus obtained differed from a sample obtained from a MgCl2 melt in that its lattice showed a strong stacking disorder. This form of MgCl2 had an extremely high surface area: Weiss, E. Chem. Ber. 1965, 98, 2805. (7) Schlenk, W. , Jr. Ber. Dtsch. Chem. Ges. 1931, 64, 734 Further additions to the examples in Table 1 were soon thereafter reported by other workers: (a) Noller, C. R. ; Hilmer, F. B. J. Am. Chem. Soc. 1932, 54, 2503. (b) Johnson, G. O. Adkins, H. J. Am. Chem. Soc. 1932, 54, 1943. (c) Cope, A. C. J. Am. Chem. Soc. 1934, 56, 1578. was written for this compound. Earlier workers had isolated noncrystalline solid samples of etherates, e. g. , C2H5MgI  · (C2H5)2O and RMgI  · 2(C2H5)2O. (4) Other early Grignard reagent crystal structur es: (a) Stucky, G. D. ; Rundle, R. E. J. Am. Chem. Soc. 1964, 86, 4825 (C6H5MgBr  · 2Et2O). (b) Vallino, M. J. Organomet. Chem. 1969, 20, 1 (CH3MgBr  · 3THF). . 10. 1021/om900088z CCC: $40. 75 ? 2009 American Chemical Society Publication on Web 03/16/2009 Organometallics, Vol. 28, No. 6, 2009 1599 Figure 1.Association of several Grignard compounds in tetrahydrofuran (J. Am. Chem. Soc. 1969, 91, 3847. ). that solutions of â€Å"CH3MgBr† in diethyl ether contain CH3MgBr and (CH3)2Mg was obtained by Ashby and co-workers by means of 1H NMR spectroscopic measurements at -105  °C. Solutions of â€Å"t-butylmagnesium chloride† in diethyl ether also were studied. 8 The tendency of the halide substituents in the RMgX and MgX2 species present in ethereal solution at equilibrium to form bridges between magnesium atoms, Mg-X-Mg, in a Lewis base/Lewis acid type interaction further complicates the nature of the Grignard reagent in ethereal solvents.In a very thorough study of the association factors of various Grignard reagents in diethyl ether and THF by careful ebullioscopic molecular weight measurements, Eugene Ashby and Frank Walker at the Georgia Institute of Technology found that monomeric, dimeric, and higher oligomeric species were present, depending on the solvent and the halogen and the organic substituents on the magnesium atom. 9 Included in this study along with data for the â€Å"RMgX† solutions were data for a few R2Mg compounds and for the magnesium dihalides.As Figure 1 shows, the observed association factor (the i value is the apparent molecular weight divided by the formula weight of the monoetherate) shows that the Grignard reagents and (C6H5)2Mg are close to monomeric in the relatively strong Lewis basic THF. The picture is quite different in diethyl ether solution (Figures 2 and 3), with association factors of 1 to nearly 4 for solute concentrations up to ca. 3 molal. It is not clear what these i values mean in terms of the a ctual species present in these solutions.On the assumption that the Schlenk equilibrium is operative in all cases, in view of the presence of a signi? cant concentration of MgX2, one cannot expect only simple solvated species of type i(R)Mg-X] n [ i (average n ) i). Toney and Stucky isolated crystals of a dimeric species, 2, from a solution of â€Å"C2H5MgBr† in di-n-butyl ether by addition of this solution to triethylamine. 10 The molecular Figure 2. Association of alkylmagnesium chlorides in diethyl ether. Demonstration of importance of halogen vs R group in determining the form of association in diethyl ether (J. Am. Chem. Soc. 1969, 91, 3848. ).Figure 3. Association of several alkyl- and arylmagnesium bromides and iodides and related magnesium compounds in diethyl ether (J. Am. Chem. Soc. 1969, 91, 3848. ). structure, as determined by X-ray analysis, contained a double Br bridge with the ethyl groups in a trans arrangement. That (8) In â€Å"CH3MgBr† solutions in d iethyl ether: (a) Ashby, E. C. ; Parrish, G. ; Walker, F. Chem. Commun. 1969, 1464. (b) â€Å"(CH3)3CMgCl† solutions in diethyl ether at-26  °C: Parris, G. ; Ashby, E. C. J. Am. Chem. Soc. 1971, 93, 1206. (9) (a) Walker, F. W. ; Ashby, E. C. J. Am. Chem. Soc. 1969, 91, 3845. (b) Ashby, E. C. Bull. Soc.Chim. Fr. 1972, 2133 (review, in English). (c) Meisenheimer, J. ; Schlichenmaier. Ber. Dtsch. Chem. Ges. 1928, 61 (an earlier, similar, but more limited study in diethyl ether). more complicated structures can be present in an â€Å"RMgX† solution in diethyl ether was demonstrated by the determination of the X-ray crystal structure of a crystalline compound obtained from a THF solution of â€Å"C2H5MgCl† of composition C2H5Mg2Cl3. This compound was not a simple Cl-bridged dimer, as the empirical formula might suggest. Actually, it was a tetramer (Figure 4) in which the Mg atoms have a coordination number greater than 4. 1 There is a caveat, however: the species t hat crystallizes from a Grignard reagent solution does not necessarily directly re? ect what species are swimming around in the solution. The crystalline solid shown in Figure 4 could well have self-assembled during the crystallization process by combination of two molecules of the C2H5Mg2Cl3 dimer and not been present in solution at all. Even in the case of monomeric â€Å"RMgX† in THF solution, the Schlenk equilibrium will be operative and the strongly Lewis basic THF apparently prevents halide bridging between Mg atoms.Consequently, the (10) Toney, J. ; Stucky, G. D. Chem. Commun. 1967, 1168. (11) Toney, J. ; Stucky, G. D. J. Organomet. Chem. 1971, 28, 5. 1600 Organometallics, Vol. 28, No. 6, 2009 Scheme 1 Figure 4. Molecular structure of [C2H5Mg2Cl3(C4H8O)3]2, a tetrameric Grignard reagent. Modi? ed from Toney and Stucky (J. Organomet. Chem. 1971, 28, 15. (copyright 1971, with permission from Elsevier)). presence of monomeric RMgX, R2Mg, and MgX2, all solvated, would resu lt in the measurement of an association factor of 1, as Walker and Ashby observed.There are so many factors that bear on the question of the constitution of a given Grignard reagent in ethereal solutionsthe Lewis basicity and steric properties of the ether solvent, the electronegativity and size of the halogen atom in RMgX, the nature and steric properties of the organic substituent on the magnesium atom. These will affect the magnitude of the equilibrium constant of the Schlenk equilibrium and the extent of Mg-X-Mg bridging. For most applications in synthetic chemistry it will suf? ce to take the easy way outsto regard and to write the Grignard reagent as RMgX.There is another interesting and useful property of ethereal Grignard reagent solutions. The magnesium species are weak electrolytes in such solvents of low dielectric constant, and â€Å"RMgX† solutions conduct an electric current. 12 The electrolysis of solutions of organomagnesium halides was studied in some detail by Kondyrew at the State Research Institute in Leningrad13 and by Ward Evans and his students at Northwestern University. 14 During the electrolysis, magnesium species migrate both to the cathode and to the anode. Scheme 1 shows the simplest picture based on RMgX. Metallic magnesium is formed at the cathode. 12) The earliest report appears to be a 1912 French paper: Jolibois, P. Compt. rend. Hebd. Seances Acad. Sci. 1912, 155, 213. See also: Nelson, ? J. M. ; Evans, W. V. J. Am. Chem. Soc. 1917, 39, 82. (13) (a) Kondyrew, N. W. Ber. Dtsch. Chem. Ges. 1925, 58, 459. (b) Kondyrew, N. W. ; Manojew, D. P. Ber. Dtsch. Chem. Ges. 1925, 58, 464. (c) Kondyrew, N. W. Ber. Dtsch. Chem. Ges. 1928, 61, 208. (d) Kondyrew, N. W. ; Ssusi, A. K. Ber. Dtsch. Chem. Ges. 1929, 62, 1856. (14) The Evans group published many papers in J. Am. Chem. Soc. during the 1933-1942 period. See, for example: (a) Evans, W. V. ; Lee, F.H. J. Am. Chem. Soc. 1934, 56, 654. (b) Evans, W. V. ; Field, E. J. Am. Chem. Soc . 1936, 58, 720. (c) Evans, W. V. ; Braithwaite, D. J. Am. Chem. Soc. 1939, 61, 898. (d) Evans, W. V. ; Braithwaite, D. ; Field, E. J. Am. Chem. Soc. 1940, 62, 534. (e) Evans, W. V. ; Pearson, R. J. Am. Chem. Soc. 1942, 64, 2865. The alkyl radicals formed at the anode can undergo the usual alkyl radical processes of coupling (to R-R), disproportionation (to RH + R(-H)), or, if the anode is composed of a reactive metal such as zinc, aluminum, cadmium, or lead, they can attack the anode to form an organometallic compound.A graduate student of Evans, David G. Braithwaite, joined the Nalco Chemical Co. after he graduated and developed an electrolytic process for the commercialscale syntheses of tetramethyl- and tetraethyllead antiknock agents in which the respective alkyl Grignard reagents were electrolyzed in a mixed THF/diethylene glycol dimethyl ether solvent system using a lead anode and a steel cathode. 15 The reactions of the Grignard reagents with organic, organometallic, and ino rganic substrates and their applications are too numerous and varied to be covered here.Not only do they ? nd extensive use on a small to moderate scale in research laboratories but they also have been prepared and utilized on a large scale in diverse industrial processes. For the most part they react as nucleophilic reagents, as would be expected, on the basis of the polarity of the carbon-magnesium bond, C? –Mg? +. However, they also can undergo electron transfer reactions with appropriate electron-acceptor substrates. They are weak bases capable of deprotonating the stronger weak organic acids such as terminal acetylenes and cyclopentadiene.Their basicity can be enhanced (as can be the basicity of organolithium reagents) by the addition to RMgX solutions in ethers of additives such as hexamethylphosphoric triamide (HMPA) and N-methyl-2-pyrrolidinone (NMP) or alkali-metal alkoxides. All such information can be found in books devoted solely or in part to Grignard reagents. 1 6 Two special topics are of current interest and merit special mention. (1) The preparation of highly functionalized organomagnesium reagents by Paul Knochel and his co-workers at the University of Munich17 by means of halogen-magnesium exchange (e. . , eq 3). The availability of reagents such as 3-8 (which must be utilized at low temperature) has added a new and spectacular dimension to Grignard reagent chemistry. (2) The synthesis of ole? ns, styrenes, 1,3-dienes and biaryl derivatives by the crosscoupling of Grignard reagents with organic halides. The crosscoupling of Grignard reagents with vinylic halides was discovered by Morris Kharasch and Charles Fuchs at the University of Chicago Organometallics, Vol. 28, No. 6, 2009 1601 Table 2.Transition Metal Halide Catalyzed Homocoupling of Phenylmagnesium Iodidea metal halide FeCl2 CoBr2 NiBr2 RuCl3 RhCl3 PdCl2 OsCl3 IrCl3 a amt, mol 0. 01 0. 01 0. 03 0. 0036 0. 0036 0. 00566 0. 00275 0. 003 amt of C6H5MgI, mol 0. 03 0. 03 0. 095 0. 0 108 0. 013 0. 0163 0. 007 0. 01 yield of biphenyl, % 98 98 100 99 97. 5 98 53 28 Taken from: J. Am. Chem. Soc. 1939, 61, 957. in 1943 during the classic studies of Kharasch on the chemistry of Grignard reagents in the presence of transition-metal halides. 6b Kharasch and Fuchs found that arylmagnesium bromides in diethyl ether reacted readily with vinylic halides of type RCHdCHX and R2CdCHX (but not CH2dC(R)X) to give styrenes in 50-75% yield when the reactions were carried out in the presence of 5 mol % of CoCl2 (eq 4). 18It was reported that other metal halides (of iron, nickel, and chromium) also were effective catalysts of this cross-coupling reaction. Benzylmagnesium chloride also reacted in this manner with vinyl bromide to give PhCH2CHdCH2 in 75% yield.Alkylmagnesium halides such as cyclohexyl- and n-butylmagnesium bromide, on the other hand, gave only â€Å"small to negligible† yields of the expected coupling product. The ArMgBrderived biaryl usually was obtained as a byproduct in these reactions. Such homocoupling of arylmagnesium halides in the presence of a transition metal halide as well as copper and silver halides was a known reaction. It had been investigated in 1939 by Gilman and Lichtenwalter, who found that aryl Grignard reagents undergo homocoupling in the presence of ca. 0 mol % of various transition-metal halides in diethyl ether solution to give the respective biaryl in high yield in most cases (eq 5, Table 2). 19 The metal halide, in addition to being the needed catalyst precursor, also served as an oxidizing agent and, in some cases (CoBr2, NiCl2, RhCl3), formation of a black solid indicated complete reduction to the metal. not occur in the absence of the organic halide but in its presence was vigorously exothermic. The added organic halide was only partially consumed and did not show up in the biaryl product.When p-bromotoluene was added to a phenylmagnesium bromide/CoCl2 catalyst reaction mixture, only biphenyl was formed. A re markable reaction! smost likely a free radical process, as Kharasch suggested. The organic halide was believed to function as an oxidizing agent. This interesting, simple, and potentially useful cross-coupling reaction, as exempli? ed in eq 4, was not adopted by the synthetic organic community right away. After a long dormancy it was rediscovered some 30 years later by a number of groups in the USA, Japan, and France, all of whom apparently were not aware of the 1943 Kharasch/Fuchs JACS paper. 1 Transition-metal catalysts other than CoCl2 were used, but the concept and the basic reaction were the same. In 1971 Tamura and Kochi reported a thorough study of the cross-coupling of Grignard reagents with vinylic halides catalyzed by soluble iron species in concentrations of ca. 10-4 M in THF at 0-25  °C. 26,27 Various Fe(III) compounds could be used as Fe catalyst precursors; the best were Fe(III) -diketonates such as Fe(RC(O)CHC(O)R)3 (R ) Ph, CH3, t-Bu). These exothermic reactions we re not free radical processes. The reactions of cis- and trans-propenyl bromide proceeded with retention of geometric con? uration (eqs 6 and 7) and were not adversely affected by the presence of 0. 4 M styrene. A ArMgBr + RCHdCHX 9 ArCHdCHR + MgBrX 8 (X ) Cl, Br) CoCl2 5 mol % (4) 2ArMgX + MXn f Ar-Ar + MgX2 + MXn-2 (5) A novel catalytic process for such ArMgX to Ar-Ar coupling was discovered by Kharasch and Fields when ethereal solutions of an aryl Grignard reagent that contained a catalytic amount (3 mol %) of CoCl2 were heated at re? ux for 1 h and then treated with an equivalent amount of an organic halide (C6H5Br, C2H5Br, i-C3H7Cl). 20 The coupling reaction to give Ar-Ar did (15) (a) Bott, L.L. Hydrocarbon Process. Petrol. Re? ner 1965, 44, 115. (b) Guccione, E. Chem. Eng. 1965, (June 21), 102. See also Part 2 of the tetraethyllead essay: (c) Seyferth, D. Organometallics 2003, 22, 5154 (pages 5172-5174). (16) (a) Krause, E. ; von Grosse, A. Die Chemie der metall-organischen Ve rbindungen; Gebruder Borntrager: Berlin, 1937; pp 14-61, 110-114. ? ? (b) Kharasch, M. S. ; Reinmuth, O. Grignard Reactions of Nonmetallic Substances; Prentice Hall: New York, 1954. (c) Handbook of Grignard Reagents; Silverman, G. S. , Rakita, P. E. , Eds. ; Dekker: New York, 1996. d) Grignard Reagents-New DeVelopments; Richey, H. G. , Ed. ; Wiley: Chichester, New York, 2000. (e) The Chemistry of Organomagnesium Compounds; Rappaport, Z. , Marek, L. , Eds. ; Wiley-VCH: Weinheim, Germany, 2008. (17) Knochel, P. ; Dohle, W. ; Gommermann, N. ; Kneisel, F. F. ; Kopp, F. ; Korn, T. ; Sapountzis, J. ; Vu, V. A. Angew. Chem. , Int. Ed. 2003, 42, 4302 (review). (18) Kharasch, M. S. ; Fuchs, C. F. J. Am. Chem. Soc. 1943, 65, 504. (19) Gilman, H. ; Lichtenwalter, M. J. Am. Chem. Soc. 1939, 61, 957. and earlier (back to 1914) references cited therein. 20) Kharasch, M. S. ; Fields, E. K. J. Am. Chem. Soc. 1941, 63, 2316. mechanism involving an organoiron(I) intermediate, obtained by reduction of the Fe(III) precursor by the Grignard reagent, was suggested. The results of a few experiments carried out on a 30-40 mmol scale (Table 3) showed that such iron-catalyzed reactions would be useful in the synthesis of ole? ns, but a broader study to optimize them and to broaden the scope of their application was not undertaken. The coupling of vinylic Grignard reagents with alkyl halides is catalyzed also by Ag(I) salts. 8 Thus, cis-propenylmagnesium (21) Two later â€Å"historical notes†22,23 and two book chapters24,25 that dealt with the cross-coupling reactions of Grignard reagents with vinylic halides also did not cite the Kharasch/Fuchs paper. (22) Tamao, K. J. Organomet. Chem. 2002, 653, 27. (23) Murahashi, S. -I. J. Organomet. Chem. 2002, 653, 27. (24) Kochi, J. K. Organometallic Mechanisms and Catalysis; Academic Press: New York, 1978; Chapter 14, Sections III and IV. (25) Hou, S. ; Negishi, E. -i. In Handbook of Organopalladium Chemistry; Negishi, E. -i. , Ed. , Wile y: New York, 2002; Vol. 1,Chapter III. 2. 6, pp 335408.As a historical note, the following quotation from this reference (p 335) is of interest: â€Å"Although the reaction of Grignard reagents with organic halides was shown to be catalyzed by various late transition metal compounds (the Kharasch reaction) in the 1950s, it was not until the early 1970s that the applicability of this catalytic method was extended to the cross-coupling involving alkenyl and aryl halides catalyzed by Ag, Fe and other late transition metals. † (26) (a) Kochi, J. ; Tamura, M. J. Am. Chem. Soc. 1971, 93, 1487. (b) Tamura, M. ; Kochi, J. Synthesis, 1971, 303. (27) Full papers: (a) Neumann, S.M. ; Kochi, J. K. J. Org. Chem. 1975, 40, 599. (b) Smith, R. S. ; Kochi, J. K. J. Org. Chem. 1976, 41, 502. (c) Reviews: ref 24. (d) Kochi, J. K. J. Organomet. Chem. 2002, 653, 11 (historical note). (28) (a) Whitesides, G. M. ; Casey, C. P. J. Am. Chem. Soc. 1966, 88, 4541. (b) Tamura, M. ; Kochi, J. J. Am. Chem . Soc. 1971, 93, 1483. 1602 Organometallics, Vol. 28, No. 6, 2009 Table 3. Alkenylation of Grignard Reagents using FeCl3 as Precatalyst (in THF)a R MgBr (amt, mmol) n-C6H13MgBr (40) CH2dCH(CH2)4MgBr (36) n-C6H13MgBr (40) a 1 R2Br (amt, mmol) CH2dCHBr (204) CH2dCHBr (102) CH3CHdCHBr (355)FeCl3 (amt, mmol) 0. 05 0. 05 0. 10 reacn temp,  °C 0 25 25 product (yield, %) n-C6H13CHdCH2 (83) CH2dCH(CH2)4CHdCH2 (64) n-C6H13CHdCHCH3 (67) (53/47 cis/trans mixture) Taken from: Synthesis 1971, 6, 303. Scheme 2 bromide reacted with methyl bromide in THF in the presence of an Ag(I) catalyst to give cis-butene-2, but a similar reaction of trans-propenylmagnesium bromide gave a 7:3 mixture of cisand trans-butene-2, respectively. 28b Apparently propenyl radicals were involved. A similar Grignard reagent based cross-coupling, ole? n synthesis in which a copper(I) catalyst was used was published by French workers. 9 Normant et al. reported that their reactions (e. g. , n-Bu(Et)CdCHI + i-PrMgCl in THF at -20  °C with a Cu(I) catalyst) proceeded with retention of con? guration. 29a For a reaction of CH3CHdC(CH3)MgCl with n-C3H7I in THF at 0  °C using CuI as catalyst, Linstrumelle reported that the coupling product obtained in 97% yield was 88% cis and 12% trans, while a similar reaction of CH2dC(CH3)MgBr with trans-n-C6H13CHdCHI gave a 4:1 trans/cis product. 29b TheuseofNi(II)catalystprecursorsforGrignardreagent-vinylic halide cross-coupling was reported in 1972 by Corriu and Masse30 and by Tamao, Sumitani, and Kumada. 1 The French group found Ni(II) acetylacetonate to be the most effective catalyst precursor, while the Japanese group favored a bis(tertiary phosphine)NiCl2 catalyst precursor and, especially, chelating diphosphine complexes such as (Ph2PCH2CH2PPh2)NiCl2. Reactions carried out in diethyl ether at re? ux generally gave excellent yields. This procedure has been carried out commercially on an industrial scale in the preparation of p-chloroand p-tert-butylstyrene. 3 2 Finally, the last to be discovered at that time and the most versatile procedure for the cross-coupling of Grignard reagents (29) (a) Normant, J. F. Commercon, A. ; Cahiez, G. ; Villieras, J. Compt. ? rend. Hebd. Seances Acad. Sci. , Ser. C 1974, 278, 967. (b) Derguini? Boumechal, F. ; Linstrumelle, G. Tetrahedron Lett. 1976, 3225. (30) Corriu, R. J. P. ; Masse, J. P. J. Chem. Soc. , Chem. Commun. 1972, 144. (31) (a) Tamao, K. ; Sumitani, K. ; Kumada, M. J. Am. Chem. Soc. 1972, 94, 1375. (b) See also ref 22. Later work: (c) Tamao, K. ; Kiso, Y. ; Sumitani, K. ; Kumada, M. J. Am. Chem. Soc. 1972, 94, 9268. (d) Kiso, Y. ; Tamao, K. ; Kumada, M. J. Organomet. Chem. 1973, 50, C12. (e) Kiso, Y. ; Tamao, K. ; Miyake, N. ; Yamamoto, K. ; Kumada, M. Tetrahedron Lett. 974, (No. 1), 3. (f) Tamao, K. ; Sumitani, K. ; Kiso, Y. ; Zembayashi, M. ; Fujioka, A. ; Kodama, S. ; Nakajima, I. ; Minato, A. ; Kumada, M. Bull. Chem. Soc. Jpn. 1976, 49, 1958. (g) Tamao, K. ; Kodama, S. ; Nakajima, I. ; K umada, M. ; Minato, A. ; Suzuki, K. Tetrahedron 1982, 38, 3347. (32) Banno, T. ; Hayakawa; Umeno, M. J. Organomet. Chem. 2002, 653, 288. (33) (a) Yamamura, M. ; Moritani, I. ; Murahashi, S. -I. J. Organomet. Chem. 1975, 91, C39. Full paper: (b) Murahashi, S. -I. ; Yamamura, M. ; Yanagisawa, K. -i. ; Mita, N. ; Kondo, K. J. Org. Chem. 1979, 44, 2408. (c) Historical note: ref 23. ith vinylic and aryl halides, that catalyzed by palladium complexes, was reported by Shun-Ichi Murahashi and coworkers in 1975. 33a The reactions were carried out in diethyl ether/benzene at room temperature using (Ph3P)4Pd as the catalyst precursor, and they proceeded stereospeci? cally in excellent yield (Scheme 2). Dang and Linstrumelle also used this procedure to prepare 1,3-dienes stereospeci? cally by the reaction of vinylic iodides with vinylic Grignard reagents. 34 Palladium-catalyzed cross-coupling of Grignard reagents with organic halides has been a very active area in organic synthesis.Reference 25 reviews (up to 2002) its application in (alkenyl) MgX-ArX, ArMgX-(alkenyl)X, and (alkenyl)MgX-(alkenyl)X coupling processes. A further chapter in this book deals with ArMgX-Ar? X coupling. 35 Another surge of research activity on cross-coupling of Grignard reagents with organic halides started around the turn of the century and still appears to be in progress at the present time (January 2009). Interest has revived in the use of iron complexes as precatalysts for the cross- and homocoupling of Grignard reagents,36 since iron complexes are cheaper than those of palladium and are nontoxic.The iron-catalyzed cross-coupling of organomagnesium bromides with vinylic bromides, although it produced ole? ns in good yield, was of interest to Jay Kochi, as noted above, primarily from the point of view of its reaction mechanism rather than of its potential for application in organic synthesis. After some 25 years several research groups carried out much experimental work which has shown iron-c atalyzed cross-coupling and homocoupling of Grignard reagents to be broadly applicable and very useful additions to the methods of organic synthesis.In 1995 Gerard Cahiez, at the Universite Pierre et Marie Curie ? ? in Paris, during the course of his extensive investigations of organomanganese chemistry, found that the cross-coupling of vinylic bromides with alkyl, vinylic, and phenylmanganese chlorides could be effected in good yield in the presence of 3 mol % of iron(III) acetylacetonate in a THF/N-methyl-2pyrrolidinone (NMP) mixed solvent at room temperature. 37 In a thorough study, this reaction was extended to the crosscoupling of vinylic halides with alkylmagnesium halides using 1 mol % of Fe(acac)3 and the same solvent mixture. 8 High yields of ole? nic products were obtained. Successful crosscoupling of Grignard reagents with AcO(CH2)6CHdCHCl, CH3C(O)(CH2)3CHdCHCl, Cl(CH2)4CBrdCH2, 9, and 10 are noteworthy as examples of the selectivity and functional group tolerance of this reaction. The scope of this chemistry was extended further when some of Knochel’s functionally substituted aryl Grignard reagents17 (vide supra) were reacted with vinylic bromides and iodides. 39 The cross-coupling reaction between aryl Grignard reagents and vinylic bromides and iodides also was found by Cahiez and co-workers to give ole? ic products in good yield with Organometallics, Vol. 28, No. 6, 2009 1603 Table 4. Iron-Catalyzed Biaryl Coupling Reactions a Table 5. Iron-Catalyzed Homocoupling of Grignard Reagents with Atmospheric Oxygen as Oxidanta a Taken from: J. Am. Chem. Soc. 2007, 129, 13788. palladium or nickel precatalysts. 42 Of these procedures, that of Cahiez et al. 41f appears to be the most useful. Alkyl halide/ alkylmagnesium halide cross-coupling is not a practical process. 43 RMgX + R? X 9 R-R? + MgX2 8 [Fe] (8)Iron-catalyzed reactions of aryl Grignard reagents with aryl halides to give biaryls generally are not synthetically useful. The desired cross-co upling products are obtained in only poor yield, the main product being the homocoupled biaryl derived from the aryl Grignard reagent (eq 9) (recall the Gilman/ Lichtenwalter and Kharasch/Fields reactions, vide supra). ArMgX + Ar? X f Ar-Ar? + (low yield) (major Ar-Ar product) (9) a Taken from: J. Am. Chem. Soc. 2007, 129, 9844. retention of geometric con? guration when carried out in THF solution in the presence of 10 mol % of MnCl2. 0 As noted above, Kharasch and Fuchs had found that attempts to cross-couple aryl Grignard reagents with alkyl halides in the presence of catalytic amounts of CoCl2 were unsuccessful. On the other hand, such reactions do occur in the presence of an iron precatalyst and various additives (eq 8, R? ) alkyl), as summarized in ref 36. A number of other groups have reported the results of their research directed toward development of an effective procedure for the process shown in eq 8, all using an iron precatalyst of one kind or another, various additives such as TMEDA, NMP, etc. nd generally diethyl ether (but sometimes THF) as solvent. 41 It is noteworthy that primary and secondary alkyl halides, i. e. , ones that contain hydrogen substituents on the carbon atom, can be cross-coupled with aryl Grignard reagents, a process that cannot be realized using (34) Dang, H. P. ; Linstrumelle, G. Tetrahedron Lett. 1978, 191. (35) Anastasia, L. ; Negishi, E. -i. Chapter II. 2. 5, pp 311-344, in ref 25. (To date palladium and nickel catalysts have been widely used to effect aryl-aryl cross-coupling reactions. However, arylmagnesium halides were found to undergo cross-coupling with aryl halides that contain electron-withdrawing activating substituents ortho or para with respect to the halogen substituent in the presence of 10 mol % of manganese(II) chloride (eq 10). 44 Cyclohexyl and 2-methylpropenyl Grignard reagents reacted with such substituted halobenzenes in a similar manner. Very (36) (a) Cahiez, G. ; Duplais, C. â€Å"Iron-Catalyzed Re actions of Grignard Reagents†, Chapter 13, pp 594-630 in ref 16e. (b) Furstner, A. ; Leitner, ? A. ; Mendez, M. ; Kraus, H. J. Am.Chem. Soc. 2002, 124, 13856 (a long ? paper that brings an excellent discussion of the literature, of questions concerning mechanism, and original results). (c) Sherry, B. D. ; Furstner, ? A. Acc. Chem. Res. 2008, 41, 1500. (37) Cahiez, G. ; Marquis, S. Tetrahedron Lett. 1996, 37, 1773. (38) Cahiez, G. ; Avedissian, H. Synthesis 1998, 1199. (39) Dohle, W. ; Kopp, F. ; Cahiez, G. ; Knochel, P. Synlett 2001, 1901. 1604 Organometallics, Vol. 28, No. 6, 2009 Table 6. Manganese-Catalyzed Homocoupling of Grignard Reagents with Atmospheric Oxygen as Oxidanta Scheme 4THF to a mixture of 3 mol % of FeF3  · 3H2O and 9 mol % of an N-heterocyclic carbene (SIPr  · HCl). In one example, chlorobenzene (1. 0 equiv) and p-CH3C6H4MgBr (1. 2 equiv) were added to this catalyst system and the reaction mixture was stirred at 60  °C for 1 day. The desired product, p -CH3C6H4-C6H5, was obtained in 98% yield. The homocoupling product, biphenyl, was present only in trace amount, while CH3C6H4C6H4CH3 was formed in 3% yield. Some examples of the application of this remarkable reaction are shown in Table 4. Good results were obtained only with aryl chlorides.Aryl bromides and iodides gave low biaryl yields. A German group reported similar MnCl2-catalyzed cross-coupling between various heterocyclic chlorides and aryl as well as alkyl Grignard reagents: e. g. , eq 11. 46 a Taken from: J. Am. Chem. Soc. 2007, 129, 13788. The homocoupling reaction of aryl Grignard reagents, mentioned earlier, also has received renewed attention recently, and synthetically useful procedures have resulted. Nagano and Hayashi developed a procedure in which the reaction is carried out in re? uxing diethyl ether in the presence of 1-5 mol % of FeCl3, NMP and 1. molar equiv of 1,2-dichloroethane (which serves as the oxidant). 47 Cahiez and co-workers have improved this procedu re by using THF as solvent, in which arylmagnesium halides, including the chlorides, are more easily prepared. 48 This procedure works well with Knochel’s functional arylmagnesium halides (Scheme 3). Of interest also is the clever construction of the tricyclic system 11 by intramolecular homocoupling (Scheme 4). (40) (a) Cahiez, G. ; Gager, O. ; Lecomte, F. Org. Lett. 2008, 10, 5255. (b) Alami, M. ; Ramiandrasoa, P. ; Cahiez, G. Synlett 1998, 325. 41) A selection: (a) Martin, R. ; Furstner, A. Angew. Chem. , Int. Ed. ? 2004, 43, 3955 (see also ref 36b and references cited therein). (b) Nagano, T. ; Hayashi, T. Org. Lett. 2004, 6, 1297. (c) Bedford, R. B. ; Bruce, D. W. ; Frost, R. M. ; Goodby, J. W. ; Hird, M. Chem. Commun. 2004, 2822. (d) Nakamura, N. ; Matsuo, K. ; Ito, S. ; Nakamura, E. J. Am. Chem. Soc. 2004, 126, 3686. (e) Bedford, R. B. ; Bruce, D. W. ; Frost, R. M. ; Hird, M. Chem. Commun. 2005, 4161. (f) Cahiez, G. ; Habiak, V. ; Duplais, C. ; Moyeux, A. Angew. Chem. , Int. Ed. 2007, 46, 4364. g) Cahiez, G. ; Duplais, C. ; Moyeux, A. Org. Lett. 2007, 9, 3253. (h) Guerinot, A. ; Reymond, S. ; Cossy, J. Angew. ? Chem. , Int. Ed. 2007, 46, 6521. (42) However, Terao and Kambe have recently developed new Pd- and Ni-based precatalyst systems which avoid the problem of -elimination of primary and secondary alkyl groups: Terao, J. ; Kambe, M. Acc. Chem. Res. 2008, 41, 1545. (43) (a) Tamura, M. ; Kochi, J. J. Organomet. Chem. 1971, 31, 289. (b) Rollick, K. L. ; Nugent, W. A. ; Kochi, J. K. J. Organomet. Chem. 1982, 225, 279. (44) Cahiez, G. ; Lepifre, F. Ramiandrasoa, P. Synthesis 1999, 2138. (45) Hatakeyama, T. ; Nakamura, M. J. Am. Chem. Soc. 2007, 129, 9844. (46) Rueping, M. ; Ieawsuwan, W. Synlett 2007, 247. (47) Nagano, T. ; Hiyama, T. Org. Lett. 2005, 7, 491. (48) Cahiez, G. ; Chaboche, C. ; Mahuteau-Betzer, F. Org. Lett. 2005, 7, 1943. Scheme 3 special, but generally applicable, reaction conditions developed by Japanese workers45 have ? nally prov ided the possibility of clean aryl-aryl cross-coupling reactions in which competitive homocoupling of the aryl Grignard reagent has been almost completely suppressed.In this procedure an active catalyst system was prepared by addition of 18 mol % of C2H5MgBr in Organometallics, Vol. 28, No. 6, 2009 1605 A further improvement resulted when it was found that atmospheric oxygen could replace the 1,2-dihaloethane as oxidant in the homocoupling of aryl, vinylic, and alkynyl Grignard reagents using either Fe or Mn catalyst precursors. 49 As Tables 5 and 6 show, this procedure gave excellent results. The most recent contribution to iron-catalyzed cross-coupling, which appeared during the preparation of the ? al draft of this paper, involves application of the old one-pot Barbier procedure in which FeCl3 served as precatalyst and stoichiometric amounts of magnesium turnings and TMEDA additive were used. A mixture of an alkyl and an aryl bromide was added to the mixture of precatalyst, TMEDA , magnesium, and solvent at 0  °C. Good yields of cross-coupled products were obtained. 50 There has been a great deal of activity in the areas of Grignard reagent/organic halide cross-coupling and aryl Grignard reagent homocoupling, and the coverage in this essay, whose focus is on the historical aspects, is far from exhaustive.Attention is called to the 2005 review by Frisch and Beller51 and especially (49) Cahiez, G. ; Moyeux, A. ; Buendia, J. ; Duplais, C. J. Am. Chem. Soc. 2007, 129, 13789. (50) Czaplik, W. M. ; Mayer, M. ; von Wangelin, A. J. Angew. Chem. , Int. Ed. 2009, 48, 607. (51) Frisch, A. C. ; Beller, M. Angew. Chem. , Int. Ed. 2005, 44, 674. to the recent Accounts of Chemical Research special issue on cross-coupling. 52 Since ? st reported in 1943, the cross-coupling of Grignard reagents with organic halides, thanks to further development by many later workers, has become a broadly applicable, very useful reaction in organic synthesis. There is much more about Grign ard reagents that I have not covered: the various procedures used in their preparation, the mechanism of their formation (which is still controversial), the more complex organomagnesium compounds such as bis(cyclopentadienyl)magnesium, magnesium butadiene, and magnesium anthracene, and the many kinds of reactions that Grignard reagents have been reported to undergo.But this is only a short essay, and so I have been able to cover only a few selected topics, ones which I hope will be of interest to the reader. More information can be found in the books that I have cited earlier. 16 Acknowledgment. My thanks, as always, to Professor Arnold L. Rheingold for the cover ? gure. OM900088Z (52) Acc. Chem. Res. 2008, 41, No. 11, 1439-1564, special issue. A collection of 11 reviews, many of them relevant to the subject matter of the present essay, with useful, up-to-date references.

Jaws vs Saving Private Ryan Essay

This paper seeks to comp ar and consecrate a critical analysis of the governwork forcetal and fond value in the join States as reflected in film. The premise is that the ele custodyts of personal identity and self-perception can be seen in the types of exposures during circumstantial periods. Two St eventide Spielberg films will be subroutine for this purpose Jaws which was shown in 1975 and salvage confidential Ryan which was wanton awayed in theaters in 1998. First, exactlyow me tackle the moving-picture show Jaws. The film has a simple that absorbing temporary hookup it shows how a peaceful summer townsfolk c eached Amity Island is turned upside en sex with the attacks by a dandy whitened shark.The new chief of Police, Martin Brody, is peerless of the for the first magazine persons to learn of the first attack, and has a gut feel that the incident should non be interpreted lightly, so he plan to have the margines closed. Nevertheless, the first incide nt is brushed aside by the town city manager since their locality depended so much on the revenues from tourists during the summer. Thus, Brodys intuitions are disregarded and eventually, an an former(a)wise(prenominal)(prenominal) shark attack ensues. As the narrative goes along, to a greater extent incidents happen pointing to the fact that thither is a shark frequenting the Amity Island beach.Shark huntsmans from all over the country compile in concert to grow the killer shark, where a bombastic Tiger Shark is caught only when was later found to be a dud. With the Mayors consent, a contractile organ/shark hunter divulged volt, is hired to catch the shark and Brody goes along with him together with Hooper, an ichthyologist, who specializes in sharks. The triplet of them get to work together to catch the great(p) White Shark, although unfortunately, Quint in any case becomes sensation of its victims.In the impressions climactic moments, Brody is able to forage an oxy gen tank (used by divers) to the Great White Shark and shoot at it at the moment when it was already aiming to contact him unitary of its meals. The tank explodes inside the shark, and its figure of speech splatters all over the area turn of events the dark blue sea into red. Hooper, whom Brody presumed dead, wherefore emerges from the waters and they both become joyous because they have succeeded in killing the Great White Shark, and their relegating has finally ended.Since the movie was shown in 1975, it was not surprising that the values shown in the film were reflective of the modern heathenish and social values during that judgment of conviction. At the initial begin of the film, a root of teenagers are shown gather around a campfire. One teenager is shown smoking close tothing which is presumptively Marijuana. As the camera pans right, a braces is shown kissing. In the foreground, some teens are ga at that placed together passing around angiotensin-converting enzyme stick which again seemed to be marijuana. because a teenage male child with a can of beer in his hand is cerebrate he was smiling at person discloseside the fire, a girl who was besides smiling post at him. male child approaches the girl, girl runs for the beach, male child follows but passes out before he even gets to undress. This is the girl who becomes the first victim of the shark attack. The use of marijuana was rampant in the 1970s. drug use was a new archetype at that time and drug ha secuation was not considered an urgent concern then. It was the time of the hippies, sexual promiscuity and assertion of individuality.It was in addition in the 70s when the abortion rate was at its highest point in the US. Sexual loss reached its peak levels to the detriment of the young adults during that time. This is shown in the way that the teenage girl was inviting the boy to swim in the beach, but undressing along the way further enticing the boy to follow her. The sexual overtones were evident be part of a culture that was more sexually predisposed during the verbalise period. Although the creation of feminism was already brought up in the 1960s through the Womens vent Movement, the 1970s saw a s wave of feminism which took place.However, this brand of feminism was not meant to be that successful tho as it was more slanted to struggleds activism and take a firm stand immediate social transformation. Hence, the portrayal of women in this film Jaws was nonoperational that of the inferior sexuality. An pillow slip of this is the typical folkmarried woman, exchangeable the wife of Brody who was depicted as the one who kept the house and took care of the children. The character of Brodys wife was portrayed as one who was hypothetic to be submissive, to cheer her husband up, to obligate him and be there for the kids.Another ikon is shown where a media man was shouting management manual to a woman who was taking slash notes like a secretary. Being a secretary is synonymous to creation a servant or a slave, which was how women were regarded in the untimely times. Women are in any case portrayed as sexual objects as seen in the way a girl was shown shriek on the beach because she was placed by a guy on his shoulders, and she was stir with being on top. Being viewed as a sex object is to a fault tantamount to treating a woman on unequal terms.In the town conflux at the city managers office, the men (and some elderly people) are shown session down with the women standing at the back all throughout, thereby implying that women were still regarded as the less knowledgeable race part of the audience but their opinion not really highly regarded. Actually, much of the historic positions in the town were held by men, and close(prenominal) of the movies scenes were, for the most part, dominate by men. This implied a continued sex activity partiality which pervaded the social systems in the early days of government and is still seen on the film.Conversely though, the teenage girl shown as the one initiating the sexual move in the initial portions of the film shows that there were already some hints that the social culture was already changing, and that the films director was comprehend signs alluding to the inevitability of feminism. This goes to show that concepts of feminism and gender equality were still in the suffice of being materialized and it would take a hardly a(prenominal) more years for its generous victimisation and adoption into society. In terms of governmental insights, the movie also tackled the issue of the Chief of Polices seeming helplessness under the Mayors authority. condescension the danger of possible shark attacks, the mayor denied Brodys request to close the beach because of the anticipated loss of revenues. This denoted the irony of electing existence officials who, instead of upholding the welfare of the local residents to whom they owe their pl ace in public office, allowed even more experiences to be endangered. Now, pertaining to the movie Saving offstage Ryan, the movie as mentioned earlier, was shown in theaters in 1995, but the majority of the ranktings were in June 1944 in France, which was the beginning of World get by II.The film starts with an old man dismissal to a soldiery cemetery with his family, and he breaks down as he faces one of the white crosses. His identity is not revealed nor is the name of the soldier who was buried on the recruit he was facing. His face is held in close-up and a foreshadowing technique is used to give up what happened in the past. Capt. John milling machine (Tom Hanks) heads an infantry of soldiers who were sent to Omaha Beach in France as part of the US array troops to fight against the French and the Germans in World War II.His troops are almost cut in fractional but they get to survive. Later on, Capt. miller is given a mission by the Chief of Staff of the US Army, wh ich is an instruction to find individual(a) James Francis Ryan (Matt Damon) of Iowa and solve him back to his mother at all costs. This was because cloistered Ryans troika brothers who were also soldiers have all passed away, and it was deemed imperative to arrest him back a follow for his mother, who had no other family left but his only lifespan son. Capt.milling machine succeeds in finding hidden Ryan but ends up having twain of his men killed, and later on, he himself ends up sacrificing his life. clannish Ryan is the old man who carries the guilt of having had three men to sacrifice their lives for his safety.He cries at the foot of Capt. Millers big(p) telling him that he tried to live his life well expert so he may become becoming of the sacrifices they do for his sake. The genre of the film is broadly action, although there were activated scenes as in the time when Capt.Miller was trying to incubate his sorrow from his other soldiers because of the death of h is men. live on in the host is difficult because he always had to show his team that he was strong and always in full control of the situation. Other emotional scenes were1) one of his timid soldiers crying because he wasnt able to do anything for his comrades because of his cowardice 2) the army vehicle coming to the house of the Ryans where the news on the death of the 3 soldiers were to be informed to their mother and 3) the time Capt.Miller died. As a 1995 film, I could say that the movie tried to tailor away from politics and other social issues and sought to focus on the radical of the horrors of war. Since almost 95% of the film was set in the 1940s during the war, the presence of women in the film was totally inappropriate, and hence most of the scenes were dominated by men. The film dealt with the fight scenes betwixt US soldiers and their enemies, the goal of accomplishing their mission and finally, being able to save Private Ryan.No beginnings were do to feminism or sexual issues, and there were no amative scenes, or allusions to anything sexual in nature. on that point was one scene however when, there was a French song being played over the phonograph and translated by one of the soldiers who could understand the language. It was a sad love song and somehow, the conversation was enjoin to a memory remembered by one of the soldiers. It was about a woman who had big breasts and it was just one of those things that men talked about just to have a nice laugh.Other than this, there were no other issues raised pertaining to gender inequality or incidents of treating women as inferior. The only time women were shown in the film was 1) at the beginning and ending, when Private Ryan was heading for the Army cemetery with his family and 2) in the World War II scenes when a family was taken hostage by some French soldiers. In both instances, the women were shown as merely part of a family, but nothing was implied as to what role they had to play or what duties they were expected to perform. In other words, the director preferred to stay in a safe zone on the feminism issue.Regarding politics, no particular reference was made to the US government whether at the national or local levels, although the hierarchy in the military was certainly illustrated as the army soldiers had to follow the orders of their superiors at all times, even if it may cost them their lives. such portrayal showed the strictness within the military obey before you question, a popular adage among the uniformed personnel, is still practiced up to now. The making of a war film in the US during this time was perhaps influenced by the disconnection War, the war against Somalia, and later on against Haiti during the 1990s.It was also the rise of the internet, the beginning of the Information suppurate and the emergence of the Third Wave of Feminism. Although these three concepts were not tackled in this movie, it is particularly substantive that Direc tor Steven Spielberg chose not to inject modernism into this film. Instead, it sought to capture the violence, carnage and cruelty of war, and the devastation both physical and emotional which it creates in the hearts and minds of its victims. The emotional scars made by the war are irreversible, and the lives woolly-headed as a consequence of war can be very dire for those who are left behind.Comparing the two movies together, it can be said that Spielberg was broad(a) in eliciting fear from the viewer in both films one due to the hesitation from the shark attack, and the other because of the violence picture during the time of war. Spielberg was excellent at presentation the gore and aggression in two different film genres. Although movies are only make-believe representations of the real thing, Spielberg did a practised job with regards to Jaws, where the editing is said to have been instrumental in making the put-on of the Great White Shark belief very authentic.Th e boat scenes and the chase scenes between the humans and the shark were filled with suspicion as the film approached its climax. In like manner, the war scenes in Saving Private Ryan are an improved version of the bloodiness portrayed in Jaws. Here, the soldiers who have been shot, the mangled bodies, apart(p) limbs, and blood gushing from the wounds of the injured soldiers just seemed so real, you could almost smell and relish the blood gushing out.The climax of the movie was reached as the premise actor face up a tank with only a pistol on his hand. Similarly, both of the movies had quick-witted yet tragic endings. In Jaws, the lead actor, Brody becomes triumphant as he succeeds in making the oxygen tank bit by the shark to explode and frankincense tear the shark to pieces. However, Quint, who is the shark hunter and who was actively in pursuit of the culprit, was not that lucky because he too was made into a meal by the shark. Conversely, the lead actor in the film Capt.Mi ller dies because of a gunshot on the pectus which he takes in while defend Private Ryan. The protected soldier, Private Ryan, gets to live his life well, until his old age and is perpetually grateful to his benefactors (Miller and his 2 soldiers) for giving him the greatness that he didnt think he deserved. In comparing the social and heathenish issues during the two periods, it can be said that the status of women in society has significantly evolved from Jaws to Saving Private Ryan.Moreover, the issues of feminism and gender equality have improved easily from the older to the more recent film. As the quality of film-making was enhanced, so did the social and cultural issues become better in status. political sympathies and sexual issues which are considered sensitive concerns were not touched on in the second film, perhaps due to the awakened realizations relate to the current times matters which were not taken into account during the filming of Jaws.