and 2853.8 cm-1 (Sp3 C-H); H1NMR (d6-DMSO) 11.487ppm (2‚ 0)‚ 6.097ppm (M‚ 2H)‚ 3.160 ppm (D‚ 2H)‚ 2.995 ppm (S‚ 2H)‚ 1.280 ppm (S‚ 2H); 13C NMR (d6-DMSO) 173.979 ppm‚ 135.199 ppm‚ 48.714 ppm‚ 48.269 ppm‚ 46.384 ppm. After hydrolysis the Fisher Esterification reaction is ran on the diacid. In a 25 mL round bottom flask the endo-diacid is mixed with methanol and concentrated sulfuric acid. A boiling chip is added to the flask and a reflux condenser is attached. The mixture
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chemical reagents Inappropriate proportions Uncontrolled environmental factors such as light and temperature. Human errors 3.) Reactivity towards chlorination (least reactive to most reactive) a. Toluene‚ Nitrobenzene‚ Anisole‚ Methylbenzoate -Nitrobenzene‚ Methylbenzoate‚ Toluene‚ Anisole b. Benzene‚ acetophenone‚ bromobenzene‚ benzyl alchohol - Acetophenone‚ Bromobenzene‚ Benzene‚ Benzyl alcohol c. Styrene‚ benzaldehyde‚ aniline‚ iodobenzene - Benzaldehyde‚ Iodobenzene‚Styrene‚ Aniline 4.) Effect
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| Reactions of Grignard Reagents with Carbonyls | | | Tuesday 1:30 | 2/28/2012 | | Introduction This experiment explores the reactivity pattern for the addition of Grignard reagents to three different carbonyl groups: a ketone‚ an ester‚ and a carbonate. Grignard reagents are organometallic compounds that have a carbon-metal bond‚ such as carbon-magnesium. Grignard reagents are formed from the reaction of an alkyl‚ cycloalkyl‚ or aryl halide and magnesium metal in dry ether
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Biofuels – Alternative and Renewable Sources of Energy - Modified from Source: http://biofuel.org.uk/ BIOMASS Biomass can be termed as organic material which is derived from living or more “recently deceased” organisms. The most important feature of biomass is that it is a renewable source of energy unlike other natural resources like coal‚ petroleum and even nuclear fuel. Biomass itself is a renewable energy source because we can always grow more trees and crops‚ and waste will always exist
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obtained in paste tank is fed to esterification reactor by screw pump. The esterification reaction is carried out under pressure and at high temperature of 265 deg C . Mole ratio of 1:1.19 is maintain in the reactor. Theoretical mole ratio requirement is 1: 1.01 Monomer is the product of esterification reaction. Water is evolved in the esterification process as byproduct The water is distilled off by distillation column and send to ETP for further treatment Esterification reaction dose not required
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1 in vapour state sulphur partly exists as S2 molecule which has 2 unpaired electrons in the antibondind pi orbitals jus lyk oxygen and thus exhibits paramagnetism. 2 An interhalogen compound is a molecule whose atom contains two or more different halogen atoms (fluorine‚ chlorine‚ bromine‚ iodine or astatine). Most interhalogen compounds known are binary (composed of only two distinct elements). Their formulas are generally XYn‚ where n = 1‚ 3‚ 5 or 7‚ and X is the less electronegative
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FILIPINO SCIENTIST Julian Banzon - Filipino Chemist: Filipino chemist‚ Julian Banzon researched methods of producing alternative fuels. Julian Banzon experimented with the production of ethyl esters fuels from sugarcane and coconut‚ and invented a means of extracting residual coconut oil by a chemical process rather than a physical process. Julian Banzon - Degrees: * BS in Chemistry from the University of the Philippines - 1930 * Ph.D. in Biophysical Chemistry from Iowa State University
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Simple Distillation‚ Gas Chromatography: Preparation of Synthetic Banana Oil Introduction This experiment gave us the opportunity to work with a variety of new procedures as well as practice procedures that are new to us within the past few weeks of labs. Within the context of the scenario‚ we find that a distilling company that markets a popular banana liqueur is having problems. The banana plantation that they use to create their banana extract was hit hard by a hurricane and their reserves
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SYNTHESIS OF ESTERS USING GREEN AND NON-GREEN CHEMISTRY Abstract Esters are a class of organic compounds with the general formula RCOOR’. Ester also contributes the flavor and aromas in fruits and flowers. The esterification reactions will use in the procedure‚ which are the interaction of a carboxylic acid with an alcohol‚ aided by an inorganic acid catalyst (H2SO4). Moreover‚ the green method will not use any catalyst but using heating source instead (microwave). Based on the comparison of
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The purpose of this experiment is to synthesize isopentyl ester by an esterification reaction between a carboxylic acid and an ester. Carboxylic esters‚ like isopentyl acetate‚ are normally used to create artificial flavors. In the preparation of isopentyl acetate‚ esterification of acetic acid and isopentyl alcohol occurs. Esterification is an equilibrium shift to the product side using an excess of one of the starting components. In this experiment‚ the excess reagent is acetic acid because it
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