Synthesis of Aspirin Name: Xuanyi Li Teaching assistant: Deirdre Zwilling November 15‚ 2009 Purpose: To synthesize aspirin‚ a common analgesic drug‚ via nucleophilic acid-catalyzed substitution reaction of salicyclic acid with acetic anhydride. The whole reaction is catalyzed by phosphoric acid. (The experiment involved three parts: The synthesis of aspirin‚ the isolation and purification of aspirin‚ and the estimation of the purity of the final product.) [pic] Procedure[1]: A mixture
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environment in which the firm operates. F&N will find that Malaysia and ASEAN are very competitive and the food and beverage industry have a very big opportunity to develop. Some of the factors that include in the economic forces is interest rate‚ tax rate ‚ and value of ringgit in world market. The second external force is demographic. Malaysia has almost 30 million peoples and for ASEAN‚ the population is 633 million peoples. This is very large population for F&N to develop their business and if they
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gif%3Bhttp%253A%252F%252Fpourquoipas-trinityprof.blogspot.com%252F2010%252F02%252Fquiz-using-map-of-france.html%3B509%3B477 DATE: 28/10/13 b) France is located in the continent of Europe‚ which is in the Northern hemisphere. The latitude of France is 46° 0’ 0" N and the longitude is 2° 0’ 0" E. URL: http://www.travelmath.com/country/France DATE: 28/10/13 c) France shares a border with 8 different countries. These include (clockwise from North): Belgium‚ Luxembourg‚ Germany‚ Switzerland‚ Italy‚ [then Mediterranean
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Synthesis of Acetaminophen Lab Report Bijal Patel‚ 20467049 Partner: Poojan Parikh T.A.’s: Long Pu CHEM 123L‚ Section: 006‚ Rm: ESC 149 Tuesday February 4‚ 2013‚ 2:30pm-5:20pm Experiment Done: Tuesday January 22‚ 2013 Introduction Acetaminophen was first introduced in 1955 (Richman‚ 2004). It is an over-the-counter drug that relieves pain and reduced fevers. Acetaminophen is considered an alternate to aspirin since it does not irritate the stomach (Richman‚ 2004). It also has very
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Amanda Jornd Experiment 7- Synthesis and Reactivity of tert-Butyl Chloride Via an SN1 Reaction Introduction/Background: Alkyl halides are compounds in which a halogen atom replaces a hydrogen atom of an alkane. Alkyl halides are classified as primary‚ secondary or tertiary depending on the number of alkyl substituents directly attached to the carbon attached to the halogen atom. The purpose of this lab was to properly prepare t-butyl chloride from t-butyl-alcohol in a concentrated hydrochloric
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Working in IN-N-OUT Burger‚ people were referred to as “associates” rather than employees or workers. As a family-run business‚ treating employees as family members make them feel more connected to the business. Snyder is always held their employees in high esteem‚ paying them higher salary than other fast-food competitors. The company’s benefit packages are also generous‚ which include vision‚ medical‚ and dental benefits for both part-time and full-time associates. Such treatment engenders loyalty
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Synthesis of Chloroform -------------------------------------------------------------------------------- With Calcium Hypochlorite and Acetone When chlorine is passed into boiling alcohol‚ both chlorination of the methyl group and oxidation of the primary alcohol group to an aldehyde occur‚ giving trichloro-acetaldehyde or chloral: When chloral is treated with caustic alkali‚ fission of the C-C linkage occurs‚ giving chloroform and a formate. Acetaldehyde and also many ketones‚ such as acetone
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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 379 unknown unknown Theoretical Yield: Limiting reagent: acetone (0.004 mol) Presuming 100 % of limiting agent makes dibenzalacetone Dibenzalacetone
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of the greatest breakthroughs that has benefited chemists in organic synthesis particularly when in need of building a carbon skeleton of interest in a molecule. For one to be able perform this acylation technique‚ there are two mar approaches which are employable. The first method involves the deprotonation of the α-Carbon atom which has a pKa known to be ̴20 through the use of a strong base for instance‚ n-butyllithium (n-BuLi) or Lithium diisopropylamide (LDA). The result of this is the production
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indicated 135 possible routes for the synthesis of 2-Aminobiphenyl. It must be noted that all routes available were lab-scale and no patents for the desired compound were available. Also‚ majority of these synthesis routes gave extremely low yields of our desired product and produced a number of other by-products in higher yields. Therefore‚ only the pathways giving significant yields of the desired product have been listed below. i. Suzuki Coupling of aryl chlorides with aryl boronic acids (Myung-Jong
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