EXAM22009

EXAM22009 - CHEMISTRY 2261 EXAM 2 October 7, 2009 LIST...

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CHEMISTRY 2261 October 7, 2009 EXAM 2 NAME (PRINT)____________________________________________ 1 2 3 4 5 6 7 8 9 10 11 TOTAL LIST number 1. (8 pts, 2 pts ea) Chiral or Achiral OH Cl H H Me H H 2. (6 pts) Indicate (circle) high priority groups and assign ( Z ) or ( E ) configuration to the following compounds. You will not get credit for your ( Z ) or ( E ) choice unless you assign correct priorities. O ON example (a) (b) F ( Z ) O 3. (9 pts) Mark all stereocenters (*) for the molecule shown below. HO O CO 2 H isoprostane
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2 4. (15 pts, 3 pts ea) Give the major product of each of the following addition reactions. a) b) d) c) HBr 1. BH 3 2. HOOH, NaOH R O O OH e) peroxide 1. Hg(OAc) 2 , H 2 O 2. NaBH 4
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3 5. (12 pts, 2 pts ea) Provide required details for carrying out the following transformations. This includes reagents and numbered steps if there is more than one step required (as for oxymercuration-reduction or hydroboration-oxidation reactions). Br OH O 6. (8 pts) Mark all stereocenters (*) for each of the molecules below. 7. (3 pts) At room temperature (25 °C), a reversible reaction equilibrates A and B to a 1000:1 ratio.
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EXAM22009 - CHEMISTRY 2261 EXAM 2 October 7, 2009 LIST...

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