Practiceproblems6 - 51A Practice Problems 6 Fall 2010 1 For...

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51A Practice Problems 6 Fall, 2010 1. For each of the following structures: a. Star any stereocenter or chiral carbon atoms. b. Label each stereocenter as (R) or (S). a. C CH 2 SH CO 2 H H 2 N H b. H C C C H OH Br H CH 3 H H c. OH CH 3 2. Write a 3-D structure for ( R )-2-iodo-3-methylbutane, showing the proper stereochemistry, then draw the structure of its enantiomer. 3. Convert the following compound into a Newman projection, maintaining stereochemistry at the two stereocenters. Now draw the most stable conformer. Is this compound chiral or achiral? C C Cl Cl Br H H Br 4. Draw all possible stereoisomers of 3-bromo-2-butanol using dash-wedge 3-D structures and
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