Chem 3B Midterm1 spring 2010

Chem 3B Midterm1 spring 2010 - Dr Steven Pedersen March 1...

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1 Dr. Steven Pedersen March 1, 2010 Chemistry 3B Midterm 1 Answer Key Student name: _________________________________________ Student signature: ______________________________________ TA’s name or section number:_______________________________ Problem 1 ________ (24 pts) Problem 2(a-d) ________ (14 pts) Problem 2(e-h) ________ (18 pts) Problem 3 ________ (18 pts) Problem 4 (a-b) ________ (16 pts) Problem 4 (c-d) ________ (16 pts) Problem 5 ________ (16 pts) Problem 6(a-b) ________ (8 pts) Problem 6(c-e) ________ (20 pts) Total Points _________ (150 pts) No Calculators Allowed No Molecular Models Allowed Be Sure Your Exam has 10 Pages 1 H 2 He 3 Li 4 Be 5 B 6 C 7 N 8 O 9 F 10 Ne 11 Na 12 Mg 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar 19 K 20 Ca 35 Br 36 Kr 53 I 54 Xe
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2 1. A. Provide a systematic name for the following compounds. Use common nomenclature for any branched substituents. (24 pts) Cl Cl H O O O hint: the base name for 12 carbons is dodecane (1 R ,3 R ) 1,3-diphenylcyclohexane 1,4-dichlorobenzene will also except para -dichlorobenzene (2 E ,6 E ,9 E ) 3,7-dimethyl-8,11-dioxododecatrienal or (2 E ,6 E ,9 E )-3,7-dimethyl-8,11-dioxododeca-2,6,9-trienal B. Draw a structure for each of the following names. For cycloalkanes use flat rings. For all others use bond-line notation. meta- iodoacetophenone 1,3,5-cyclohexantrione 3-cyclobutylaniline C. Provide a name for musk Baur that is based on the toluene skeleton. Use common nomenclature for any branched substituents. O 2 N NO 2 NO 2 musk Baur 2,4,6-trinitro-3- tert -butyltoluene or 3- tert -butyl-2,4,6-trinitrotoluene ( t -butyl for tert -butyl is also ok) The generic name for the functional group shown below is thiosulfinate. Based on this, provide a common name (i.e. not IUPAC) for allicin. S S O R S S R O a thiosulfinate allicin a common name for allicin: allylthiosulfinate or diallylthiosulfinate I O O O O NH 2
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3 2. Predict the product(s) of the following reactions. Where relevant, show all stereoisomers. Each redundant or wrong answer cancels one correct answer within any given box. (32 pts)
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Chem 3B Midterm1 spring 2010 - Dr Steven Pedersen March 1...

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