Tutorial%203Q - CHEM 281 Tutorial Problem Set No 3 1 In...

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CHEM 281 Tutorial Problem Set No. 3 1. In class we learned that although chiral molecules share many of the same physical properties, their interactions with plane-polarized light are unique. Below are two examples of chiral molecules whose enantiomers demonstrate additional unique or detrimental properties. a) please draw a chemical structure for both enantiomers of thalidomide and point out which enantiomer is ( R ) and which is ( S ). Also, describe how a lack of appreciation for the unique properties of enantiomers led to serious side effects when this molecule was used as a racemic drug. Roughly, what percentage of current drugs on the market are chiral? b) the unique smells of spearmint leaves and caraway seeds can be attributed to the same molecule – carvone. Please draw each enantiomer of carvone and briefly explain how these enantiomers can have such unique smells. 2. Please name the following molecules and indicate whether or not they are chiral.
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