Exp 2 - Stereochemistry of the Addition of Bromine to...

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Stereochemistry of the Addition of Bromine to trans-Cinnamic Acid Tyler Argent 9/29/08 CH 237 (Exp.2) TA: Jeremy Carr
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Tyler Argent 9/29/08 Stereochemistry of the Addition of Bromine to trans-Cinnamic Acid CH 237 Exp. 2 Lehman, John W., Operational Organic Chemistry. (Exp. 23 p.175 in text) I. Pre-Lab: (Attached) II. Experiment Notes and Observations: (Refer to Pre-Lab) III. Results: A. Table of Reagents Compound M.W. m.p. b.p. d Trans-cinnamic acid 148.2 136 C Bromine 159.8 -7 C 59 C 3.12 g/mL Acetic acid 60.1 17 C 118 C 1.049 g/mL Erythro-2,3-dibromo-3- phenylpropanoic acid 308.0 204 C Threo-2,3-dibromo-3- phenylpropanoic acid 308.0 95 C Substances Product: erythro -2,3-dibromo-3-phenylpropanoic acid(syn addition) Amount of Product:
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Structure of Product: Percentages of Substances from Total Amount Theoretical Yield: Percent Yield: Melting point data m.p. range of product: 200C – 207C IV. Discussion: This experiment consisted carrying out the addition of bromine to trans-cinnamic acid
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This note was uploaded on 04/19/2010 for the course CH 237 taught by Professor Staff during the Spring '08 term at Alabama.

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Exp 2 - Stereochemistry of the Addition of Bromine to...

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