Readily available enantiomerically pure epoxy vinyl sulfoxides 10–13 and 15 undergo highly regio-and stereoselective SN2′ displacements with alkyl cyanocuprates. The sulfinyl auxiliary controls the anti-syn stereochemistry of the process.
现成的对映体纯净的
环氧乙烯基亚砜10-13和15与
氰基
氰酸烷基酯发生高度区域和立体选择性的S N 2'置换。亚磺酰基助剂控制该过程的反合成立体
化学。