Treatment of (S)-(1)-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after
Chapter 22, Problem 22.91(choose chapter or problem)
Treatment of (S)-(1)-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after protonolysis, a good yield of a mixture containing mostly a dextrorotatory ketone A and a trace of an optically inactive isomer B. Treatment of A with zinc amalgam and HCl affords an optically active, dextrorotatory hydrocarbon C. Identify A, B, and C, and give the absolute stereochemical configurations of A and C.
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