CHEM 14C Winter 12 Final Exam Part B Solutions,100% CORRECT
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Course
CHEM 14C
Institution
CHEM 14C
CHEM 14C Winter 12 Final Exam Part B Solutions
1.
HO
O O
2. Influence #1: Resonance causes some or the entire molecule to be planar.
Influence #2: Resonance increases stability.
Influence #3: Resonance causes electron delocalization.
3. Coplanar
The carboxylic acid a...
, Chemistry 14C Winter 2012 Final Exam Part B Solutions Page 2
7. Of the carbon stereocenters in penicillin G, two have the R configuration, one
has the S configuration, and zero are not R or S. Not including the structure
shown above, there are 23 - 1 = 7 penicllin G stereoisomers.
H
8. Several answers are possible. Invert at least N S CH3
one, but not all, of the stereocenters of O
penicillin G. For example invert only the
stereocenter bearing the carboxylic acid: CH3
N CO
O OH
9. (d) No conclusions can be drawn concerning the drug properties of the
enantiomer.
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kfreoym/ CourseHero.com on 02-24-2023 16:51:30 GMT -06:00
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