2009 Exam#3

2009 Exam#3 - Fall 2009 Chemistry 236 Hour Exam 3 Last Name...

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Chemistry 236 Hour Exam 3 Fall 2009 Last Name _______________________________ First Name _______________________________ 1. _______ 15 pts 2. _______ 12 pts 3. _______ 30 pts 4. _______ 28 pts 5. _______ 15 pts Total: __________ 100 pts
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1. (15 pts) Mechanism. Give a structure for intermediate A and a mechanism for the formation of A and B . Is the stereochemistry of B the one that would be obtained from your mechanism? Explain. 2 A B [CH 3 (CH 2 ) 3 ]CuLi O CH 3 (CH 2 ) 4 H CH 2 OH H O H O H
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c. An alkane would exhibit the following (m/z) mass series in EI MS: d. The cleavage of a glycol by periodic acid would be considered what type of reaction: e. Which reagent is an oxidant: none of these 3 Oxidation Reduction Addition Elimination 2. (12 pts - 2 pts each) Multiple choice. Circle the s i n g l e correct answer in each part. a. Which compound below does not have the same oxidation level as the others: all four are the same level b. Mass spectrometry can provide which of the following information:
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2009 Exam#3 - Fall 2009 Chemistry 236 Hour Exam 3 Last Name...

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