The synthesis of carbohydrates can be particularly difficult because of the large number of chiral centers and functional groups present. Epoxides can be useful synthetic intermediates in carbohydrate syntheses. Draw the product of the following reactions of a Gilman reagent with each epoxide.
a) What is the configuration of the chiral carbon in the epoxide? What is the configuration of that carbon after the reaction? Are any new chiral centers created as a result of the reaction?
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