Chem 261 Spr 2008 Exam II ANSWER SHEET

Chem 261 Spr 2008 Exam II ANSWER SHEET - 1 2 3 4 5(2 pts ea...

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Chemistry 261, Section 1 Name(print) Exam 2 March 20, 2008 ANSWER SHEET Sign pledge: I. Give Products for REACTIONS - CAREFULLY FOLLOW DIRECTIONS ON EXAM (21 total pts) 1. 2. No rxn achiral racemic diastereomers meso No rxn achiral racemic diastereomers meso 3. 4. No rxn achiral racemic diastereomers meso No rxn achiral racemic diastereomers meso 5. 6. No rxn achiral racemic diastereomers meso No rxn achiral racemic diastereomers meso 7. II. 1. (6 pts total) 2. 3. 4. 5. No rxn achiral racemic diastereomers meso 6. III. Multiple Choice IV. Alkyne Reactions Put only ONE clearly readable letter answer. (2 pts ea; 34 total) One letter answer. (2 pts ea.; 16 total) 1. 6. 11. 16. 2. 7. 12. 17. 1. 5. 3. 8. 13. 2. 6. 4. 9. 14. 3. 7. 5. 10. 15. 4. 8. V. Given each reaction pair on exam put the “little” letter (a or b) for the faster reaction.
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Unformatted text preview: 1. 2. 3. 4. 5. (2 pts ea; 10 total) VI. Concept Questions and Mechanisms… (4 pts each; 20 points total) 1. Carefully draw and label structures for cpds B and C . 2. Show radical removal of H from hydroxyl and two additional radical resonance structures (3 total). OH C(CH 3 ) 3 (H 3 C) 3 C CH 3 RO 3. Show COMPLETE correct mechanisms for the three reactions below. If products are given, make sure to explain all of them. If product stereochem is significant, SHOW IT. (4 points ea) A. + Br-Br HCl Cl + Cl B. C. Br Br 2 , h ν THE END - 107 total pts; Max score allowed = 100...
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This note was uploaded on 06/24/2008 for the course CHEM 261 taught by Professor Austell during the Spring '08 term at UNC.

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Chem 261 Spr 2008 Exam II ANSWER SHEET - 1 2 3 4 5(2 pts ea...

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