the reagents. This mechanism allows for the formation of Salicylic Acid. When Acetic Anhydride is used as a reagent‚ the double bond on the ketone is transferred as a charge to the oxygen causing the opposite charges to attract. Once again‚ the electrophilic oxygen takes the lone pairs between the O-H bonds to form the final product of Aspirin and acetic acid. These mechanisms for this experiment can be seen in Scheme 1. Aspirin is classified as a Non-Steroidal Anti-Inflammatory Drug that is indicated
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STEREOCHEMISTRY: ADDITION OF BROMINE TO trans-CINNAMIC ACID Required Prelab Readings: McMurry Chapter 5‚ Sections 8.2 & 21.2 Morhig‚ Sections 7.1 and 7.3. Previous techniques that you must know and be able to perform: Suction Filtration and Melting Point This experiment is designed to demonstrate two concepts. First‚ it will provide a demonstration of how chemists can use chemical reactions to understand reaction mechanisms. Second‚ is the concept of multi-step synthesis. You will
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1 CHM 1321-C Final Exam (prof. S. Gambarotta) Your Name: ___________________ April 12– 2013 Student #: ______________ 1. Solution key will be posted today on the web to day. 2. You must respond correctly to the first 41 exercises (1 mark each) to get the full mark. 3. There are 3 bonus questions at the end (4 mark each). In case of correct answers‚ each will add 4 marks to whatever you scored from the non-bonus questions. 4. Deliver the entire booklet 2 1) How many π bonds are present in
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ASynthesis of an alkyl halide Jade A. Chuahiong and Marika Bianca F. Morioka Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City 1101 Philippines Date Performed: April 25‚ 2013; Date Submitted: April 30‚ 2013 Alkyl halides could be synthesized through several processes and using different compounds as reactants. One of the simplest method used is the addition of a hydrogen halide to an alcohol. In this research‚ tert-butyl alcohol was reacted with cold concentrated
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used to reduce a ketone to an alcohol. Generally‚ the Grignard reagent is represented by an alkyl- or aryl-magnesium halide. The nucleophilic Grignard reagent attacks an electrophilic carbon‚ which results in the formation of a carbon-carbon bond. Forming carbon-carbon bonds are very synthetically useful. The electrophilic carbons found within a carbonyl group are the most likely to be attacked because of their polarity. The Grignard reagent is formed by the reactions between an alkyl or aryl-halide
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BIOORGANIC CHEMISTRY BioOrganic Chemistry Laboratory – CH 205 (2010-2011) Experiment 3 Analysis of Hydrocarbons Maria Patricia Dizon‚ Nikko Paolo Ebarvia‚ Darlene Louise Estrada* and Rizhelle Evan Evaristo Department of Occupational Therapy‚ College of Rehabilitation Sciences University of Santo Tomas‚ Espaňa Street‚ Manila 1008 Date Submitted: February 2‚ 2011 Abstract: Organic compounds hexane‚ heptane‚ cyclohexane‚ cyclohexene‚ benzene‚ and toluene were subjected
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Preparation u Alcohols when heated in presence of H2SO4‚ H3PO4‚ P2O5‚ Al2O3 or BF3 undergo loss of water molecule with the formation of alkene. Conc. H2SO4 180oC H3PO4/P2O5 200oC Al2O3/BF3 350oC CH3-CH=CH2 + H2O CH3-CH2-CH2-OH CH3-CH=CH2 + H2O CH3-CH=CH2 + H2O u u Mechanism: In the first step OH group of the alcohol is protonated in a fast reversible reaction. Unlike OH group‚ protonated OH group is a good leaving group. Step 1: CH3 CH3-C-CH3 + H+ HO CH3 CH3-C-CH3 H2O+
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Lab #24- Preparation 4-Methylcyclohexene Introduction: The goals in this lab were to have a reaction occur with 4-methylcyclohexanol and an acid catalyst to form our product of 4-methylcyclohexene via an E1 reaction. This reaction is accomplished by removing the –OH group on 4-methylcyclohexanol via dehydration and to have a double bond form via a loss of a hydrogen on a β-Carbon. Many techniques and skills were developed in this lab. Among them were dehydration‚ isolation‚ drying
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Ethyl acetate (systematically‚ ethyl ethanoate‚ commonly abbreviated EtOAc or EA) is the organic compound with the formula CH3COOCH2CH3. This colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues‚ nail polish removers‚ and cigarettes (see list of additives in cigarettes). Ethyl acetate is the ester of ethanol and acetic acid; it is manufactured on a large scale for use as a solvent. The combined annual production in 1985 of Japan‚ North America‚ and Europe
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[19593 Organic Chemistry of the Tramition Elements. Part r. View Online 551 Downloaded by University of Washington on 01 February 2011 Published on 01 January 1959 on http://pubs.rsc.org | doi:10.1039/JR9590000551 113. The Organic Chemistry of the Transition Elements. Part I. Tricarbonylchromium Derivatives of Aromatic Compounds. By B. NICHOLLS M. C. WHITING. and Many aromatic compounds‚ ArH‚ displace carbon monoxide from chromium hexacarbonyl with the formation of complexes Cr(CO)
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