._____________ refers to the method by which an optically reactive reagent or catalyst is used to transform an optically inactive starting material into an optically active product. A. Racemization B. Enantioenrichment C. Chiral chromatography D. Asymmetric induction Correct Answer: D. Asymmetric induction Racemization refers to the conversion of an optically active substance to a racemic form (has equal amounts of left- and right-handed enantiomers of a chiral molecule). Enantioenrichment refers to the act of enriching an already existing mixture of stereoisomers such that it contains more than 50% of one enantiomer. Chiral chromatography involves the separation of stereoisomers using a chiral stationary phase, which does not involve chemical transformations. “Optical reduction” as a technique or phrase does not exist.
Posted on: Mon, 11 Aug 2014 08:26:35 +0000
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