exam2_f00 - Chem 12A Dr. Harrison EXAM #2 Name _ Fall '00...

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Chem 12A EXAM #2 Name __________________ Dr. Harrison Fall '00 1. (12 pts) Predict which species is more stable and explain your answer. a. b. S S + + HO S O O - S H - c. d. - NH 2 - C N C N + NH 2 + e. f. N + + B + P + 2.(12 pts) Write a mechanism for the following reaction. + Br 2 light Br
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3. (20 pts) Predict the major products for the following reactions. In each case write all of the stereoisomers possible and state whether the reactants and the products are optically active (write directly underneath the compound). a. + CHBr 3 + CH 3 C H 3 C CH 3 O - b. I CH 2 CH 3 CH 3 OH heat S N 1 c. + HO - Br OH S N 2 d. Br OH + OH - S N 2 e. Br H (CH 3 ) 3 CO - 4. (8 pts) Which term best describes the pair of compounds shown below: enantiomers, diastereomers, or the same compound. a) b) CH 2 OH HO H COOH H OH HO OH O H OH OH H Cl H 3 C H Cl CH 3 H Cl Cl
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5. (12 pts) For the following pairs predict which compound is a better Leaving group. Explain your reasoning.
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This note was uploaded on 09/02/2011 for the course CHEM 12a taught by Professor Harrison during the Spring '11 term at West Valley.

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exam2_f00 - Chem 12A Dr. Harrison EXAM #2 Name _ Fall '00...

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