Synthesis of Bromophenyl Essay - 275 Words

Synthesis of Bromophenyl (Lab Report Sample) Content: Name Course Tutor Date Synthesis of (1R,2S)-1-(m-Bromophenyl)-3-methyl-1,2-butanediolSynthesis of (1R,2S)-1-(m-Bromophenyl)-3-methyl-1,2-butanediol involves nine important steps.Step I:The reaction begins with the abstraction a chloride from 1-Chloro-3-methyl butane by the iron (III) chloride to from a carbanion. Since the Nitro-group is deactivated, the carbanion formed attacks the nitrobenzene at the meta-position (McMurry and Simanek 170). EMBED ChemDraw.Document.6.0 
Step II:Step II involves allylic bromination of benzene. N-Bromosuccinimide (NBS) is the reagent used commonly for this type of bromination as it provides a low concentration of molecular bromine. Each molecule of hydrogen bromide that is formed is converted into Br2 by NBS (Carey and Sunberg 371). Illumination of light facilitates the bromination process (Tabert 180). EMBED ChemDraw.Document.6.0 
Step III:This step involves the abstraction of a bromide to form a double bond potassium tert-butyl which is a strong, non-nucleophilic base. Step IV:This step involves epoxidation of alkenes using a peroxy acid. The reaction is regioselective since the two new C-O à Ã†â€™ bonds formation occur at the same time from the peroxy acid.HYPER13 EMBED ChemDraw.Document.6.0 
Step V:This step involves acidic hydration of the ether to form a diol. The hydrolysis process is a concerted one and stereospecific and forms anti diols (Wyatt and Warren 560) EMBED ChemDraw.Document.6.0 
Step VI:This step involves bromination of the nitrobenzene. The aluminium bromide abstracts a bromide from bromine molecule, and the bromide ion formed then attacks the benzene on meta-position since nitro-groups are meta-directors (McMurry and Simanek 170). EMBED ChemDraw.Document.6.0 
Step VII:In this step, the nitro-group is reduced to amino-group using tin metal in the presence of an acid. EMBED ChemDraw.Document.6.0 
Step XIII:In step xiii, sodium nitrate is used to remove the amino group from t he benzene ring at...

Essay about Religion

Essay about Religion Religion is an integral part of the life of modern society. It is closely related to the social, economic and political areas of people’s lives. Many sociologists have been studying this area for a long time. The main reason of such a huge interest is the great influence the religion has on the main functions in society. Religion has united all beliefs and, as the result, one moral community the church was created. The main practices, held by the religion, lie in the presence of rituals, which are a number of actions taken to deal with the sacred aspects. The main principles of such rituals include the behavior patterns to regulate people’s life. The forms of rituals can be of a different nature: singing, praying, sharing food, etc. One of the functions of any of such rituals is bringing together the believers of this or that religion. For example, Christianity is the religion, which is based on the principal teaching of Jesus Christ, on his life and deeds. Originally, it started in Palestine and was then spread all over the world. It is well-known that Christianity is not the only one religion in the world. Along with it there are also: Buddhism, Islam and many others. It’s important to mention atheists too. Atheism is rejection of God’s existence. But here’s what I think, atheism – is also a kind of religion and belief – belief in non-existence of the sacred power. We can believe or we can reject, but in the time of sorrow we somehow all appeal to God. That is why it is important to respect different kinds of faiths, make a choice for yourself and do not argue about the features of the other ones.

A Brief Note On Western Civilization Since 1648 - 1116 Words

James Albright Dr. Amy Powers Western Civilization Since 1648 8 November 2015 World War I Aircrafts and the way they are used has greatly changed over the course of the two wars. Before and during WWI, airplanes were primitive, made of wood and canvas and were not able to flying long distances or carrying little weight. During the early years of the first war, they were used as methods of reconnaissance and to spy on enemy lines. the Germans had planes with mounted Fokker machine guns at the front which could effectively fire through the prop, turning the airplane into an offensive weapon. â€Å"Airplanes were used almost exclusively for reconnaissance, though occasional â€Å"dogfights† did occur between German and Allied pilots.† This new innovation gave birth to air combat and â€Å"dogfights† (Western Civilization, pg. 582) . Aviation aces during this time included, Billy Bishop, The Red Baron and Rene Fonck, each with over 70 victories. By 1917, airplanes were proving to play a significant role in. During the short-lived prosperity of the 1920â⠂¬â„¢s, the aviation industry saw great new advances to lead them into World War II. The First World War displayed trench warfare, â€Å"Up you go,†he says,†it’s our turn.† proving to be a one of its kind type of battlefield. When two armies collided on a front, they dug down underneath to fortify their ground. Soldiers would try to hop over the top and run to enemy trenches in an attempt to capture them. The objective in this type of warfare is toShow MoreRelated The Role of the Individual and Society in the Late 19th Century, Nationalism1994 Words   |  8 Pagessystem and benefit all of the people of the nation. The King and the monarchy, however, stood to benefit most from the increase of wealth brought on by nationalism. Since the monarchy controlled the government, they could do as they saw fit with the money that the nation accumulated. The King had the most control over the economy since he was an absolute monarch and had no checks on his power. In the case of Germany and Italy, the monarchy wanted to use the monetary gain in order to support a strongRead MoreEssay about Human Beings and Nature: The Scientific Revolution1689 Words   |  7 Pagesand control it. Nature was no longer something to be feared, but it was something to be used for ones advantage. END NOTES: 1. Perry M. Rogers, et al. Aspects of Western Civilization Third Edition Volume II (Upper Saddle River, N.J.: Prentice Hall 1997), 13. 2. Rogers, 15. 3. Donald Kagan, et al. The Western Heritage Brief Edition Volume II: Since 1648 (Upper Saddle River, N.J.: Prentice Hall 1996), 342. 4. Rogers, 7. 5. Rogers, 18. 6. Rogers, 16. 7. RogersRead MoreThe Great Northwoods Essay7709 Words   |  31 Pages In conclusion, the manner that I have chosen to write this paper was presented to me by my sources. Of the few sources that I was able to garner dealing solely with the Nicolet National Forest, each followed the same general outline. And, since importance was stressed upon these areas already by established historians, I felt that it should not be ignored. The first major exploration that bears particular relevance to the Nicolet National Forest begins with the exploits of JamesRead MoreInstitution as the Fundamental Cause of Long Tern Growth39832 Words   |  160 PagesNorth (1990, p. 3) oï ¬â‚¬ers the following deï ¬ nition: â€Å"Institutions are the rules of the game in a society or, more formally, are the humanly devised constraints that shape human interaction.† He goes on to emphasize the key implications of institutions since, â€Å"In consequence they structure incentives in human exchange, whether political, social, or economic.† Of primary importance to economic outcomes are the economic institutions in society such as the structure of property rights and the presence and

Wal-Mart Grapples with Rfid free essay sample

The first question asks how RFID is related to Wal-Mart’s business model. No insight is given in the text as to what that business model is. I believe the answer can be summed up in their slogan â€Å"always the low price†. Wal-Mart is so huge that they dictate to their suppliers how the supplier will run their own businesses and what Wal-Mart will be charged. For more insight on Wal-Mart and how they do business see â€Å"The Wal-Mart You Don’t Know† at . http://www. astcompany. com/magazine/77/walmart. html The case study indicates that the largest reason Wal-Mart wants RFID tags is to insure that merchandise is on the store shelf instead of the storeroom in the back of the store. Wal-Mart already insists merchandise is delivered to stores on time, every time. Suppliers are benefited if their product is available for sale when a customer wants it. Suppliers are not benefited when a tag costs 40 to 50 cents each and Wal-Mart expects the vendor to absorb t he cost. We will write a custom essay sample on Wal-Mart Grapples with Rfid or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I don’t think suppliers are benefited, just another cost of doing business with Wal-Mart. Wal-Mart suppliers had several problems implementing the RFID systems. First was cost, as mentioned above. Next, the tags did not work well with all merchandise. Certain liquids, metals and porous material interferes with the radio waves. Being new technology, standards have not been written and equipment to use the tags has not been fully developed. Suppliers’ biggest problem was Wal-Mart itself demanding the technology be used, even though it was yet to be proven reliable. Suppliers have been unable or unwilling implement what Wal-Mart requested. With Wal-Marts’ clout, there are probably technical and cost issues that just could not be overcome. Otherwise Wal-Mart’s vendors would have been forced to adopt RFID. The tags are being used in Wal-Mart stores on a limited basis and the phrase â€Å"baby steps† is being attached to the technology. The case study questions are three to four years out of date. A better question today would be if the technology will ever live up to it’s potential in the Wal-Mart environment.