CHEM 263 - Exam II - June 8, 2007

CHEM 263 - Exam II - June 8, 2007 - f 6 Give the...

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Chemistry Department University of Alberta CHEM 263 Exam II Friday, June 8, 2007 1. What is an “azeotropic mixture”? 2. The nitration of N , N -dimethylaniline, C 6 H 5 N(CH 3 ) 2 , in 85% H 2 SO 4 gives 45% m -nitro product and 38% p -nitro product. (The remainder is polynitrated product and no typing error has been made!) a. What is the species actually undergoing nitration to give the meta product? b. How is it formed? c. What is its relative reactivity to that of benzene? (Give an explanation of your answer.) 3. Name the following compound: 4. Complete the following partial structure of (Z)-3-ethoxy-2-butenal: 5. What reagents would you use to effect five (5) of the following conversions? a. b.
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c. d. e.
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Unformatted text preview: f. 6. Give the structure(s) of the principle organic products of five (5) of the following reactions: a. b. c. d. e. f. 7. Provide a synthetic pathway for three (3) of the following transformations: a. b. c. d. 8. Enamines formed from pyrrolidine are important intermediates in the synthesis of 1,5-diketones. Propose a mechanism for the following reaction that forms an enamine: 9. Propose a mechanism for the following reaction: CHEM X6X Home Page | Facult√© Saint-Jean | University of Alberta | Chemistry Department This page is maintained by Dr. Ed Blackburn ( [email protected] ), course instructor. Updated June 10, 2007...
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This note was uploaded on 07/05/2008 for the course CHEM 263 taught by Professor Blackburn during the Summer '06 term at University of Alberta.

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CHEM 263 - Exam II - June 8, 2007 - f 6 Give the...

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