"Dimethyl maleate isomerization to dimethyl fumarate" Essays and Research Papers

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    invention of hairspray. Industrial suppliers can increase their net profit of aerosol hairspray production by analyzing and possibly optimizing their manufacturing process‚ mores specifically‚ the production of the most widely used aerosol propellant‚ dimethyl ether (DME). The optimization of a thermally coupled DME reactor (OTCDR) proves to be economical‚ energy sufficient‚ and increase the net profit of the industrial plant. It is in the best interest of industrial aerosol hairspray manufacturers to

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    Lab Protocol #8 - Dehydration of 3‚3-dimethyl-2-butanol KEYWORDS: alkenes‚ E2‚ E1‚ carbocation stability‚ elimination A. Introduction. The dehydration of alcohols is an ELIMINATION reaction that is commonly used to form alkene molecules. The mechanism for the dehydration of alcohols consists of transforming the –OH functional group into a better leaving group by using a strong acid to protonate the alcohol. After –OH has been transformed into –OH2+‚ it becomes easier to break the σ-bond between the

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    ALLEFRIN Chlorpheniramin maleate Properties: Allefrin (Chlorpheniramine maleate) has a very good therapeutic efficacy as histamine antagonizing agent with a very low incidence of side effects. It is one of the best effective antihistamines‚ although administered in a very low dosage which is far below any that are toxic. Its medical actions are due to the following pharmacological properties: a. It antagonizes the action of histamine on the plain muscles of the bronchioles‚

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    Experiment #9 Isolation and Isomerization of Lycopene from Tomato Paste Goal / Purpose To extract the carotenoid pigments from canned tomato paste and separate them by column chromatography to obtain a solution that contains lycopene. Then record the ultraviolet-visible spectrum of this solution and analyze it for evidence of isomerization. Calculation List of Materials 4.0g tomato paste screw cap vial Chromatography column 25ml buret 50ml flask ring stamd and clamp 50% mixture

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    Available online at www.pharmacie-globale.info ISSN 0976-8157 Research Article PHARMACIE GLOBALE INTERNATIONAL JOURNAL OF COMPREHENSIVE PHARMACY DEVELOPMENT AND VALIDATION OF A RP-HPLC METHOD FOR THE DETERMINATION OF CHLORPHENIRAMINE MALEATE AND PHENYLEPHRINE IN PHARMACEUTICAL DOSAGE FORM Mukesh Maithani*‚ Richa Raturi‚ Vertika Gautam‚ Dharmendra Kumar‚ Amrendra Kumar Chaudhary‚ Anand Gaurav and Ranjit Singh School of Pharmaceutical Sciences‚ Shobhit University‚ NH-58‚ Modipuram‚

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    metabollic pathways

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    pharmacologically in active status. Inactive substance which has a metabolite that is active is referred to as a prodrug. Drugs are metabolized by the following processes; reduction‚ oxidation‚ conjugation‚ hydration‚ hydrolysis‚ condensation and isomerization. All these processes make the excretion of drugs easier from the body like that of a human being. For metabolism to occur‚ enzymes must be present. Enzymes are present in body tissues but they are concentrated in the liver. Rates

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    Photochemical Synthesis of Benzopinacol and its Acid-Catalyzed Rerrangement Product Benzopinacolone M.E.G. Balita Institute of Chemistry‚ University of Philippines‚ Diliman‚ Quezon City Date Performed: February 18‚ 2011 Date Submitted: March 4‚ 2011 Abstract In this experiment it is aimed to synthesize benzopinacol through photochemical reaction of benzophenone and‚ benzopinacolone via acid-catalyzed rearrangement of benzopinacol. In this experiment‚ mixture of benzophenone‚ isopropyl

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    1.0 INTRODUCTION 1.1 Occupational Safety and Health Administration& Process Safety Management The Occupational Safety and Health Administration (OSHA) is an agency to assure safe and healthful working conditions for working men and women by setting and enforcing standards and by providing training‚ outreach‚ education and assistance.The Occupational Safety and Health Act allows OSHA to issue workplace health and safety regulations. These regulations include limits on chemical exposure‚ employee

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    Alcohol and Ir Spectrum

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    or 1b (2-pentanol)‚ and 2 (1‚4-dimethyl-3-pentanol). The purpose of this experiment was to understand and become familiar with the reaction mechanisms and be able to observe and compare the product or products for each of the reactions using 13C NMR and IR. The reaction of 1-propanol (1a) with NaBr/H2SO4 was 1-bromopropane‚ the reaction of 2-pentanol (1b) with NaBr/H2SO4 was 2-bromopentane and the reaction of 2‚4-dimethyl-3-pentanol with HCl/ZnCl2 was 2‚4-dimethyl-3-chloropentane. Background: Alcohols

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    Ashley Droddy CHM 235LL-Monday‚ 3/19/2012 & 3/26/2012 Part A: Dehydration of 1-butanol & 2-Butanol/Part B: Dehydrobromination of 1-Bromobutane & 2-Bromobutane Abstract The objective of this experiment is to successfully perform a dehydration of 1-butanol and 2-butanol‚ also dehydrobromination of 1-bromobutane and 2-bromobutane to form the alkene products 1-butene‚ trans-2-butene‚ and cis-2-butene. The dehydration reactions react under and acid-catalysis which follows an E1 mechanism

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