2nd%20midterm%20KEY%2011-04

2nd%20midterm%20KEY%2011-04 - 1. (10 pt.) What will be the...

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1. (10 pt.) What will be the major product of the following reactions? Pay careful attention to the stereochemistry of the product. AlCl 3 heat O O 1.O 3 Cl 1. AlCl 3 2. H 2 O, H + Cl O O Na/NH 3 O O OMe MeO 2. (CH 3 ) 2 S O O
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2. (18 pt.) Complete the following reactions. Pay careful attention to the stereochemistry of the product. + CO 2 CH 3 + CO 2 CH 3 CO 2 CH 3 heat + HNO 3 /H 2 SO 4 heat + NBS h ν NaNH 2 1. 2. H + O Na HO + Br Br Br NO 2 NO 2 3 pt. 4 pt. 2 pt. 4 pt. 3 pt. heat + no reaction- the diene is "locked" into trans conformation 2 pt. only 3 points if two identical molecules instead of one
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3. (10 pt.) Complete the following sentences using the hypothetical reaction energy diagram provided below. a. The intermediate in this reaction is represented by the letter ___c___ b. The kinetic product of this reaction is represented by the letter ____f____ c. The transition state the that leads to the thermodynamic product is represented by the letter ___d____ d. The conversion of __c___ to __f (or e)___ has the highest rate constant. e. Cooling of the kinetic product will give the thermodynamic product (true/ false).
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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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2nd%20midterm%20KEY%2011-04 - 1. (10 pt.) What will be the...

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