OCHEM2 Exam4B

OCHEM2 Exam4B - Multiple Choice: 1) /2 2) /2 3) /2 4) /2 5)...

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Multiple Choice: 1) /2 2) /2 3) /2 4) /2 5) /2 6) /2 7) /2 Free Response: 8) /30 9) /21 10) /35 __________ TOTAL: /100 CHEM 123 Spring 2005, Dr. Franz EXAM #4 Date: 04/04/05 NAME (print) ________________________________________________ ID NUMBER ________________________________________________ When writing chemical structures, use standard conventions and make sure that the structure unambiguously conveys all necessary information. College-level answers are expected: For essay questions (even if semi-multiple choice) clearly explain your answers. Just the correct answer without reasoning is insufficient. There are ten questions to this exam and nine pages, including the cover page. Make sure that you have all ten questions and all nine pages now. There are 100 points on this exam.
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CHEM 123 Spring 2005 Dr. Franz Exam #4 5 8. (30 points) Write the structures for the intermediates in the following multistep syntheses. a) EtOOC(CH 2 ) 5 COOEt 1) NaOEt (1 equiv.) 2) aq. HCl, vigorous heating OEt O EtO O NaOEt 1) H 2 /Pd 2) HCl, 2 H 2 O, vigorous heating A B C
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CHEM 123 Spring 2005 Dr. Franz Exam #4 6 b) 1) HSCH 2 CH 2 SH, HCl 2) n-BuLi, Et 2 O, -78 o C 3) CH 3 CH 2 CH 2 Br 4) HgCl 2 , H 2 SO 4 , H 2 O OEt O EtO O NaOEt A B H 3 C H O
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This test prep was uploaded on 04/10/2008 for the course CHEM 123 taught by Professor Franz during the Spring '08 term at Pacific.

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OCHEM2 Exam4B - Multiple Choice: 1) /2 2) /2 3) /2 4) /2 5)...

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