exam 2 key - Chem. 318N, Spring 2009, Prof. Krische Midterm...

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Chem. 318N, Spring 2009, Prof. Krische Midterm Exam II Last Name: KEY First Name: FELIX Problem 1. (12 points) 2. (10 points) 3. (10 points) 4. (24 points) 5. (20 points) 6. (12 points) 7. (12 points) Total Points: /100 Grade % Score A+ 100 - 90 A 89 - 85 A- 84 - 80 B+ 79 - 75 B 74 - 70 B- 69 -65 C+ 64 - 60 C 59 - 55 C- 54 - 51 D+ 50 - 49 D 48 -47 D- 46 - 45 F 45 - 0
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1. (12 points) For the following pairs of carbonyl compounds, circle the one that is more reactive with respect to nucleophilic addition and draw the anticipated major product derived from the more reactive compound. Assume excess reagent is employed. O O N O Me Me Me O R LiAlH 4 , Et 2 O Then H 2 O H O H O O R -78 o C, Et 2 O Then H 2 O NO 2 NO 2 LiO Me O O O R Then H 2 O Me O O Me MeONa, MeOH CF 3 NMe 2 Ph O O Ph Cl O O R Then Aqueous HCl N Me O Ph A. B. C. D. OH NO 2 Me O OH O O Me Me Me O O
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2. (10 points) Circle the molecule or functional group that embodies the indicated property. A. Faster Rate of Friedel-Crafts Acylation. B.
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exam 2 key - Chem. 318N, Spring 2009, Prof. Krische Midterm...

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