The purpose of this experiment was to synthesize isopentyl acetate via an esterification reaction between acetic acid and isopentyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate‚ as well as with water‚ then dried with anhydrous sodium sulfate. The product was then distilled using a Hickman still and characterized using infrared spectroscopy. The percent yield of isopentyl acetate was 61.52%. This may have been low due to not all of the
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INTRODUCTION Isopentyl acetate‚ "banana oil"‚ is a naturally occurring compound that possesses a distinctive odor. It is found in bananas‚ as well as many other organisms. This experiment attempts to produce isopentyl acetate by heating under reflux‚ which involves heating the mixture in a flask with a condenser placed vertically in the neck since any escaping vapours condense and run back into the flask‚ by combining isopentyl alcohol with acetic acid and an acid catalyst. The product was isolated
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Jeana Greaves Chem3301-112 June 19‚ 2013 Synthesis of Aspirin from Methyl Salicylate Introduction The synthesis of Aspirin (Acetyl Salicyclic Acid) began with methyl salicylate and sodium hydroxide as the reagent. The polar oxygen accepts the electrons from now positively charged hydrogen. The positively charged sodium disassociates leaving the hydroxide ion with a negative Scheme 1 shows the mechanisms that were demonstrated during the synthesis of Aspirin. charge that attracts to the positively
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Lab 1: Synthesis of Aspirin Introduction: The purpose of this lab was to demonstrate the ability to easily alter the molecular structure of a compound to greatly increase its utility. In this case‚ an acetyl group was added to salicylic acid‚ a naturally occurring compound with significant pharmaceutical value. Without the addition of the acetyl group‚ salicylic acid is an irritant to the gastro-intestinal (GI) tract. Once the acetyl group is added via a simple reaction‚ acetylsalicylic
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Social scientists have studied it‚ lawyers have tried to fix it and post-feminist society is over it. But women are still outnumbered by men in math‚ science and engineering fields. Most overt discrimination against women in the sciences has been reduced or eliminated in recent decades through legal‚ academic‚ corporate and government measures. But a climate that is less than fully friendly to women remains‚ and its texture is often still so taken for granted that it tends to be invisible. The
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compounds are nitrated it changes the composition and reaction of the compounds.[4] We could benefit from these changes‚ nitration of acetanilide produces a product called p- Nirtoanoline. P-Nitroaniline is commonly used as an intermediate in the synthesis of dyes‚ antioxidants‚ pharmaceuticals and gasoline. P-Nitroaniline is also used in gum inhibitors‚ poultry medicines and as a corrosion inhibitor. [2] Nitration is a type of chemical reaction which a nitro group is added to or substituted in a
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CONDENSATION Synthesis of Cinnamaldehyde I. Introduction Cinnamaldehyde‚ cinnamic aldehyde or 3-phenyl-2-propenal is the major constituent of cinnamon oil‚ extracted from several species of Cinnamomum (C. verum‚ C. burmanii‚ C. cassia)‚ under the family Lauraceae‚ a group of evergreen trees. Cinnamon bark (particularly C. verum) yields 0.4-0.8% oil‚ which contains 60-80% cinnamaldehyde‚ 4-5% sesquiterpenoids (α-humulene‚ β-caryophyllene‚ limonene and others)‚ eugenol‚ cinnamyl acetate‚ eugenol acetate
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being that Silica gel in TLC 2 was polar and the solvent ethyl acetate-hexane is non-polar it moved relatively with the solvent. The stationary phase in TLC 3‚ alumina is non polar and the solvent ethyl acetate is polar so from the ideal that polar does not attract non-polar benzophenone stick stronger to alumina non-polar rather than moving up with polar solvent ethyl acetate as it did in tlc2. 6. Ethyl acetate is polar and Ethyl acetate- hexane is nonpolar‚ use of polarity differences. Because the
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attached. substance Hazards‚ risks and safety practices MW (g/mol) Amt. Used Mol. mp (K) bp (K) density(g/cm^3) acetone R11‚ R36‚ R67‚ S9‚ S25‚ S26 58.08 0.24 g 0.004 178.2 329.4 0.79 benzaldehyde R22‚ S24 106.13 0.82 g 0.008 247 451.1 1.0415 ehtyl acetate R11‚ R36‚ R66‚ R67‚ S16‚ S26‚ S33 88.11 2 ml per gram n/a 189.55 350.25 0.897 NaOH R35‚S22‚ S26‚ S38‚ S45‚ S62‚ s24/25 39.997 0.4 g 0.01 591 1663 2.1 Ethanol R11‚ S2‚ S7‚ S16 46.07 2 ml n/a 158.8 351.6 0.789 Dibenzalacetone n/a 234 g/mol n/a n/a
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1.TITLE: To prepare isopentyl acetate (isoamyl acetate) 2. AIM: To make an ester referred to as banana oil from acetic acid and isopentyl alcohol 3.THEORY: This ester is often referred to as banana oil‚ since it has the familiar odor of this fruit O O CH3 H+ CH3 CH3C OH +
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