Problems%20for%20140B-2006%20winter%20final

Problems for 140 - a NaNH 2 A CH 3-I B H 2 SO 4 H 2 O HgSO 4 C D b A B 1 NaOH 2 CH 3-I H O 1 CH 3 MgBr 2 H/H 2 O C Complete the following reactions

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Problem 1 : Propose synthetic strategies for the following reactions. Provide all reagents needed and show all the intermediates. A) B) O Problem 2 Provide the major products for the following reactions. Cl 2 /AlCl 3 1) HNO 3 , H 2 SO 4 1) CH 3 MgBr 2)HCl/H 2 O O 1)OH - /H 2 O 2) SnCl 2- 2H 2 O O 1) O 2 N O H H + O HC C - Li + H + /H 2 O H + 2) Br 2 LDA/THF O 2) O 3) H + /H 2 O in DMSO Br Mg Ether O 1) 2) H + /H 2 O
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Problem 3 For the following reaction, give the structures of compounds A, B, C and D. Show the stereochemistry.
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Unformatted text preview: a) NaNH 2 A CH 3-I B H 2 SO 4 , H 2 O, HgSO 4 C + D b) A B 1) NaOH 2) CH 3-I H O 1) CH 3 MgBr 2) H + /H 2 O C Complete the following reactions a) (Ph) 3 P Cl O A B BuLi C D b) 1) O3 2) CH 3-S-CH 3 1) OH-/H 2 O H + , Heat A 2) H+ B C Problem 6 1) What are the major products for the following reactions? a) Heat b) Br 2 CCl 4 c) HBr d) 1) O 3 2) (CH 3 ) 2 S e) HBr ROOR...
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This note was uploaded on 05/08/2009 for the course CHEM 140A taught by Professor Whiteshell during the Spring '04 term at UCSD.

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Problems for 140 - a NaNH 2 A CH 3-I B H 2 SO 4 H 2 O HgSO 4 C D b A B 1 NaOH 2 CH 3-I H O 1 CH 3 MgBr 2 H/H 2 O C Complete the following reactions

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