Exam II Key spring 2008

Exam II Key spring 2008 - Chemistry 261 Section 1 i...

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Unformatted text preview: Chemistry. 261, Section 1 i ' ' Name(p_r_int)P “)(M Exam 2 March 20, 2008 ANSWER SHEET Sign piedge; I. Give Products for REACTIONS - ' { [ULLY FOLLOW DIRECTIONS ON EXAM (21 totai pts) ' N0 rxn raccmic diastereomers mesa - achirai racemic diastcreumers mesa , " "/ )0 Show No rxn .ciziral racemic diastereomers No rxn (achiral) racemic diastcreomers kwgiw ' .Zdb .WH No rxn achiral racemic diastcreomer mesa N0 rxnr achirai racemic iastereom s mesa . . I 3,... 0/! 7. . _ II. 1. 3 (6 pts total ‘ 5 2; 8 Can 3. , 5 EM DWI: 4.____’L__ 5. ,3 Nu m achiral diastereomers mesa 6. W III. Multigle Choice IV. Al ne Reactions 7] Put only ONE clearly readable letter answer. (2 pts ea; 34 total) One Ietter answer. fl/‘V (2 pts ea.; 16 total) 6 11. j 16. fi 7. . 17.__fl 1. A 5. _G_ s. 13._12 2. J; 6.'_E_ 9. 3. _D_ '7._B__ _C_ EL . . . b . _ 1. _b_ 2. & ail 4._Q_ 5. _Q\_ (2 pts ea; in total) VI. Conce t uestions and Mechanisms... ' (4 pts each; 20 pointstotal) 1. Carefully draw and label structures for cpds B and _C_. ‘ ‘ @i MC; @ Y 2. Show radical removal of H from hydroxyl and two additional magical resonance structures (3 total). C0 * (Haclac C(CH333 »<(—‘—-----Mh- 4—4—«1» CH3 ' 3. Show COMPLETE correct mechanisms for the three reactions below. If products are given, make sure to explain all of them. If product stercochem is significant, SHOW IT. (4 points ea) A. J‘ _ 3 THE END .107 total pts; Max score allowedm 100 ...
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