Expt2_bromine%20addition_2010_PAR2010

Expt2_bromine%20addition_2010_PAR2010 - EXPERIMENT 2...

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EXPERIMENT 2 ADDITION REACTIONS BROMINE ADDITION to trans -CINNAMIC ACID Pre-laboratory questions- (To be answered in the Lab note Book)
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Experiment 2 2 Br 2 addition to trans- cinnamic acid Marking Scheme: Pre-lab questions 5 marks Flow chart 2 marks Technique (quality/quantity) 8 marks - Product (4 marks for quality, 1 mark for quantity) - Experimental technique (3 marks) Post-lab questions 10 marks 1. Find in the literature, the melting point of trans-cinnaminc acid. trans -cinnamic acid M.P. = 131 o C Reference: http://www.sciencelab.com/xMSDS- trans_Cinnamic_acid-9923483 2. Give the products of the following reactions, including all stereoisomers: a) CH 2 CH 3 HBr b) CH 3 C H 3 Br 2 c) CH 3 CH 3 H 2 /Pt d) CH 3 CH 3 C H 3 3. Calculate the expected amount, in grams, of 2,3-dibromo-3-phenylpropanoic acid from this reaction, assuming 100% conversion and isolation. ( trans -cinnamic acid is the limiting reagent).
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Experiment 2 3 Br 2 addition to trans- cinnamic acid 4. Show the flow chart for the reaction integrating the reaction procedure/technique with the chemical species present and working towards obtaining the pure product.
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Experiment 2 4 Br 2 addition to trans- cinnamic acid Introduction The addition of molecular bromine to the double bond of an alkene is an example of the most common reaction of multiple bonds (
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This note was uploaded on 06/15/2010 for the course AP 32185 taught by Professor Meher during the Spring '10 term at Acton School of Business.

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Expt2_bromine%20addition_2010_PAR2010 - EXPERIMENT 2...

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