CHM 202 Exam 3 Sum II 2007 Model Answers

CHM 202 Exam 3 Sum II 2007 Model Answers - CHM 202 Summer...

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CHM 202 Summer II 2007 EXAM THREE (Total 100 points) Name MODEL ANSWERS Section A Multiple Choice: SCANTRON, DO ALL QUESTIONS (2 points each = 80 points) 1. What would be the product from the following reaction? C H O Li 1) 2) H + /H 2 O C O CH OH CH Li CH 2 a) b) c) d) 2. The product of the following reaction sequence is? CH 2 OH Ph PBr 3 Mg dry ether H 3 O + ? CH 3 CHO a) PhCH 2 OCH 2 OH d) PhCH 2 CHOHCH 3 b) PhCH 2 CHBrCH 3 e) PhCH 2 OCH 2 CH 3 c) PhCH 2 CHO 3. What is the product from reaction of methylmagnesium bromide and cyclohexanone followed by acid? a) OH b) OCH 3 c) MgBr d) OH e) 4. Which synthesis of a Grignard reagent would fail to occur as written? a) CH 3 OCH 2 CH 2 Br + Mg/ether —› CH 3 OCH 2 CH 2 MgBr b) CH 3 CH 2 CH 2 I + Mg/ether —› CH 3 CH 2 CH 2 MgI c) BrCH 2 CH 2 COOH + Mg/ether —› BrMgCH 2 CH 2 COOH d) C 6 H 5 Br + Mg/ether —› C 6 H 5 MgBr Questions 5-7 refer to the following reaction sequence I 2Li dry Et 2 O A CuCN B C O 1) 2) H 5. What is product A ? MgBr I Li Li 2 Li OEt a) b) c) d) e) 6. What is product B ? Cu Li 2 CuLi CN a) b) c) d) e) CuLi 2 7. What is product C ? a) b) c) d) e) CO 2 H CH 2 OH CH 2 CH 2 OH CHO CHCH 3 OH 8. The following compound is? CH 3 OH OH a) an aldehydeacetal d) a ketone hydrazone b) a ketone hemiacetal e) an aldehyde hemiacetal c) a ketone hydrate 9 The following compound is? CH 3 OH OCH 3 a) an aldehyde acetal d) a ketone hydrazone b) a ketone hemiacetal e) an aldehyde hemiacetal c) a ketone hydrate 10. The product of the following will be? C O Cl (Ph) 2 CuLi ? CH
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This note was uploaded on 10/09/2011 for the course CHM 202 taught by Professor Higgs during the Fall '08 term at FIU.

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CHM 202 Exam 3 Sum II 2007 Model Answers - CHM 202 Summer...

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