Purpose: The purpose of this experiment was to identify one ketone with Thin Layer Chromatography and one using NMR spectrometry. We will do this by making 2‚ 4 a DNPH derivative and checking the melting points. Theory: By Using specific methods of compounds detection‚ we can match an unknown compound with a known compound because similar compounds will display similar characteristics. In this experiment‚ identifications of the unknown ketone was accomplished using thin layer chromatography
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Objective: The purpose of this experiment was to prepare the Grignard reagent methylmagnesium iodide and react it with benzoin to form the 3o alcohol 1‚2-diphenyl-1‚2-propanediol‚ through an addition reaction pathway. Introduction: Grignard reagents are alkyl or aryl-magnesium halides that act as the nucleophile in Grignard reactions‚ where ketones are reacted with the reagent‚ then treated with acid to produce an alcohol. In the case of this experiment‚ methylmagnesium iodide was created
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Nicole Vigliotti Partner: Camille Dupiton Lab #1 Purification of a Solid: Crystallization and Melting Point Section: A61 Laboratory Exercise #1 Purification of a Solid: Crystallization and Melting Point Introduction In this lab exercise‚ we will be learning experimental techniques using glassware and other apparatuses. In order to successfully complete this lab‚ we will use techniques 1.0‚ 1.1‚1.2‚2.0‚2.1‚2.2‚ and 2.3 that are described in the Lab Manuel.
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Title: Esterification Objective: To synthesis acetylsalicylic acid by esterification. Introduction: A pleasant‚ often fruity‚ odor is characteristic of some of the simpler esters. Ethyl butyrate smells similar to pineapples‚ the odor of n-propyl acetate is reminiscent of pears and isopentyl acetate has a strong banana fragrance. Esters are derivatives of the carboxylic acids and contain the following functional group: The synthesis of an ester can be accomplished in one of several ways. An esterification
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Anthony Young Partner: Nick Dale TA: Alehkya 6/8/15 Isolation of Trimyristin from Nutmeg and Preparation of Myristic Acid from Trimyristin by Hydrolysis. Introduction In this experiment‚ trimyristin will be isolated from the nutmeg by extraction‚ and then used to prepare myristic acid by hydrolysis. The isolation of a substance from a natural product is a common technique used nowadays. Usually‚ the isolation is a complex procedure and requires a lot of steps and preparation. For this experiment
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. . . . . . . . . . . . . . . . . . . . . 3 Microscale Oxidation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 BACKGROUND REQUIRED You should be familiar with making micropipets‚ vacuum filtration‚ recrystallization‚ melting point measurement‚ thin-layer chromatography (TLC)‚ and infrared spectroscopy (IR). BACKGROUND INFORMATION An important category of chemical reactions involves the transfer of electrons from one molecule to another. These reactions
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SC/CHEM 3001 3.0 Experimental Chemistry II Experiment A4: Palladium Catalysis: The Suzuki Reaction Abstract In this experiment‚ the Suzuki reaction was performed using phenylboronic acid‚ p-iodophenol and Pd/C catalysis in potassium carbonate aqueous media to synthesize biphenyl-4-ol. The yield of final product was only 11.94% and the measured melting point was 170-175℃. Since the appearance of the product was significantly different from expected light tan color and the measured melting
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sit 15 min. a.ii. Precipitating and drying a.ii.1. After the “hydroxide extract” is cooled‚ acidify with 3M HCl and cool‚ a precipitate will form and crystallization will begin. Filter the precipitate with vacuum filtration and follow the recrystallization procedure with water and IPA. Follow these steps with the “bicarbonate extract” but recrystallize with water and ethanol. The organic solution is dried by adding sodium sulfate until the solution becomes clear. After drying the “neutral compound”
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Formal Report no. 1 Synthesis of Aspirin Chemical Principles Aspirin is most widely sold over-the-counter drug. It has the ability to reduce fever (an antipyretic)‚ to reduce pain (an analgesic)‚ and to reduce swelling‚ soreness‚ and redness (an anti-inflammatory agent). Much of this is believed to be due to decreased production of prostaglandins and thromboxanes. Aspirin’s ability to suppress the production of prostaglandins and thromboxanes is due to its irreversible inactivation of the cyclooxygenase (COX)
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White cloudy liquid Mixture in ice bath White particles settled at the bottom of cloudy white liquid Suction Filtration Filtrate White powdery crystals Residue Clear yellowish liquid Crude Aspirin White powdery crystals Table 3. Recrystallization of Aspirin. Description Crude aspirin + EtOH Clear colorless liquid with undissolved white solids Mixture during heating Powdery white solids dissolve in clear colorless liquid Mixture after heating Clear yellowish liquid Mixture at
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