14D_w10_e02A_key

14D_w10_e02A_key - Chemistry 14D Winter 2010 Exam 2A...

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Chemistry 14D Winter 2010 Exam 2A Solutions Page 1 Statistics : High score, average, and low score will be posted on the course web site after exam grading is complete. Some questions have more than one answer, even though only one answer may be listed here. To see the projected course grade cutoffs, consult the grading scale on the Chemistry 14D course web page. 1. (a) OH 1. BH 3 2. HO - , H 2 O 2 (b) O 2 N Br 2 , FeBr 3 O 2 N Br 2. OCH 3 Br 3. OCH 3 OCH 3 Br H Br rds OCH 3 Br 4. OCH 3 HBr OCH 3 Br 5. My new reaction of question 4 is faster because the carbocation intermediate of question 4 (secondary with resonance) is more stable and therefore has a lower energy of activation for its formation than the carbocation of question 3 (primary with resonance). 6. OH O H F O H H F O + HF 7. A = B = Br 2 C = C C CH 3 D = H 2 SO 4 or H 3 PO 4
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Chemistry 14D Winter 2010 Exam 2A Solutions Page 2 E = O 8. (a) CH 3 and H 2 O (b) Br 2 (or HOBr) and Br CH 3 or CH 3 Br 9. Cl AlCl
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This note was uploaded on 03/12/2012 for the course CHEM 14D taught by Professor Hardinger during the Winter '08 term at UCLA.

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14D_w10_e02A_key - Chemistry 14D Winter 2010 Exam 2A...

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