Practiceex3 herriot

Practiceex3 herriot - Sample Questions for Exam 3 1 The product C of the following sequence of reactions CH 3 CH 3 CCHO CH 3 CH 3CH 2CHO O H A H

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Page 1 Sample Questions for Exam 3 1. The product, C, of the following sequence of reactions, OH - CH 3 CCHO CH 3 CH 3 + CH 3 CH 2 CHO A H 3 O + (-H 2 O) B NaBH 4 CH 3 OH C would be: A) CH 3 CCH=CHCH 2 CH 2 OH CH 3 CH 3 D) CH 3 CCH 2 CH 2 CH 2 CH 2 OH CH 3 CH 3 B) CH 3 CCH=CCH 2 OH CH 3 CH 3 CH 3 E) CH 3 CCH 2 CHCHO CH 3 CH 3 CH 3 C) CH 3 CCH 2 CH 2 CH 2 OH CH 3 CH 3 2. What would be the major product of the following reaction? C 6 H 5 CH=CHCCH 3 O + CN - CH 3 CH 2 OH CH 3 COOH ? A) C 6 H 5 CH 2 CHCCH 3 CN O D) C 6 H 5 CH 2 CH 2 CCN O B) C 6 H 5 CHCH 2 CCH 3 O CN E) C 6 H 5 CHCH=CCH 3 CN OH C) C 6 H 5 CH 2 CH 2 CCH 3 OH CN
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Page 2 3. What would be the major product of the following reaction sequence? IV I II V III O ? i. LDA ii. C 2 H 5 I O O O O A) I B) II C) III D) IV E) V 4. What synthetic strategy would accomplish the following transformation? O O ? A) i) Br 2 , H 3 O + ; ii) NaOC 2 H 5 , C 2 H 5 OH, heat B) i) Cl 2 , FeCl 3 ; ii) NaOC 2 H 5 , C 2 H 5 OH, heat C) i) HCN; ii) H 3 O + , heat D) i) Br 2 , h ν ; ii) (CH 3 ) 3 COK, (CH 3 ) 3 COH, heat E) i) Br 2 , H 3 O + ; ii) (CH 3 ) 3 COK, (CH 3 ) 3 COH, heat 5. Which of these is a product of the reaction of C 6 H 5 MgBr with C 6 H 5 CH=CHCCH 3 O ? A) C 6 H 5 CH=CCCH 3 C 6 H 5 O D) CH=CHCCH 3 O C 6 H 4 p -C 6 H 5 B) C 6 H 5 CH=CHCCH 3 OH C 6 H 5 E) C 6 H 5 CH=CHCHCH 3 OC 6 H 5 C) C 6 H 5 CH=CHCCH 2 C 6 H 5 O
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Page 3 6. Which reagents would you use to synthesize this compound by an aldol condensation? C
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This note was uploaded on 02/10/2011 for the course CHEM 2420 taught by Professor Staff during the Spring '08 term at Wyoming.

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Practiceex3 herriot - Sample Questions for Exam 3 1 The product C of the following sequence of reactions CH 3 CH 3 CCHO CH 3 CH 3CH 2CHO O H A H

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