Multistep Synthesis of Tetraphenylcyclopentadienone Author: Instructor: Date work performed: 10.18.2012--10.25.2012 Date work submitted: 11.01.2012 Abstract: The aim of this experiment was to perform a multistep synthesis to form tetraphenylcyclopentadienone. The first step of the reactions was to synthesize benzoin from the condensation of benzaldehyde. A yield of 28.91% benzoin was obtained. The MP of benzoin was 127O-130O C and the IR spectra displayed a carbonyl peak at 3415 cm-1
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George Bandik‚ Organic Chemistry 2 Laboratory Manual. Hayden-McNeil‚ LLC: 2012. 2. Padias‚ Anne B.‚ Making the Connections: A How-To Guide for Organic Chemistry Lab Techniques‚ 2nd ed.; Hayden-McNeil‚ LLC: Plymouth‚ MI‚ 2011. 3. Grignard Synthesis‚ Grignard Synthesis of Carbonyl Groups. http://www.bc.edu/schools/cas/chemistry/undergrad/org/spring/Grignard.pdf 3/10/12.
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It’s ignorant to even challenge a book because of its content. In the article‚ Schools and Censorship: Banned Books it states that‚ “Every day someone tries to control or otherwise restrict oral expressions‚ broadcast messages‚ or written words.” Trying to control what others read is foolish! In fact‚ Everyone should have the right to read what
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Censorship‚ in true form‚ is the systematic banning of books‚ the Internet‚ or other literature due to content that has been deemed inappropriate. In the United States‚ it is used widely in the context of adolescent literature. Resistors to this movement often claim that the government is violating many children’s first amendment rights. Numerous cases have been brought. Others find this act of restricting material devastating to the education system. Censorship has infringed on children’s first
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Lab #4 The Synthesis of Organic Polymers CHM2123‚ Section C October 21‚ 2014 Introduction: Organic polymers are macromolecules that are composed of smaller molecules called monomers. There are two main groups of polymers: natural polymers and unnatural (synthetic) polymers. Natural polymers include proteins such as cellulose and starch and are a necessity for our existence. On the other hand‚ synthetic polymers such as the polycarbonate in our lab goggles
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Potter Stewart once said‚ “Censorship reflects a society’s lack of confidence in itself.” Stewart’s personal definition of censorship is constantly portrayed throughout Ray Bradbury’s novel Fahrenheit 451 as readers see free-thoughts being restricted by government efforts. This can be seen first as government-directed firemen burn books to keep citizens from developing their own opinions on matters. Secondly‚ ideas and questions are kept off limits by distracting people through the technology surrounding
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October 9‚ 2013 Partner(s): Acetylsalicylic Acid Synthesis Theory. This experiment was carried out to see how the hydroxyl group on the benzene ring in salicylic acid reacts with acetic anhydride to form an ester‚ and to make aspirin. Synthesis of Acetylsalicylic Acid occurs by protonation of carbonyl (C=O) group‚ and a nucleophilic attack of OH on the acetic anhydride. The ferric chloride test and melting point were used to test the purity of the results. A hypothesized recovery rater of above
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SYNTHESIS AND CHEMISTRY OF K2S2O8 ABSTRACT In this experiment‚ a sample of K2S2O8 was prepared by the electrolysis of an aqueous solution of H2SO4 and K2SO4. The peroxodisulfate anion‚ S2O82-‚ was also observed for its ability to serve as a counterion for precipitation by preparing a copper (II) complex by reacting hydrated copper (II) sulfate with ammonium peroxodisulfate in the presence of pyridine. This same ability‚ coupled with its strong oxidizing ability allowed for stabilization of
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The Hunger Games is a novel written in 2008 by Suzanne Collins about a dystopian future of what was once known as North America‚ now known as "Panem". The totalitarian nation of Panem is divided between 12 districts and the Capitol. Each year two young representatives from each district are selected by lottery to participate in The Hunger Games; Part entertainment‚ part brutal retribution for a past rebellion. The Capitol selects a boy and a girl between the ages of 12 and 18 from each of the twelve
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EXP-10 CHEM 233L SYNTHESIS OF p-BROMOANILINE Introduction: In this experiment‚ p-bromoaniline was synthesized in three steps starting from aniline. Since the amino group of aniline is a strong activator of aromatic ring‚ direct bromination is impractical (equation 1). In order to make a desired product‚ amino group needed to be protected as the acetamide which also maintained ortho and para position but slowed down the rate of reaction (equation 2). Slow reaction rate would increase
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