Racemic α′-acetoxy α,β-unsaturated cyclohexanone has been converted to the corresponding enantiomerically enriched α′-hydroxylated and acetoxylated compounds with 97% ee via enzymatic resolution with PLE. OsO4-Catalyzed dihydroxylation of enantiomerically enriched α′-acetoxylated compound afforded a single diastereomer in 85% chemical yield. The absolute configuration of 2,3,6-triacetoxycylohexanone
外消旋的α'-乙酰氧基α,β-不饱和
环己酮已通过PLE的酶促拆分反应转化为相应的对映体富集的97%ee的α'-羟基化和乙酰氧基化的化合物。对映体富集的α'-乙酰氧基化化合物的OsO 4催化二羟基化以85%的
化学收率提供了一个非对映异构体。通过X射线衍射分析确定2,3,6-三乙酰氧基
环己酮的绝对构型。后续的Luche还原使我们能够得到对应的SYN按预期在高度立体选择性方式型环多醇的前体。