Asymmetric alkylation and sulphenylation of chiral O-silylated imide enolates.
作者:Rikki P. Alexander、Ian Paterson
DOI:10.1016/s0040-4039(00)95033-0
日期:1985.1
The chiral O-silylated enolates (5) can be alkylated or sulphenylated with high diastereoselectivity (∼20:1) by 1,3-dithienium fluoroborate or PhSCl. Phenylthio-alkylation, in contrast, proceeds with low diastereoselectivity.
手性O-甲硅烷基化的烯醇盐(5)可以被1,3-二氟硼酸二硼鎓或PhSCl高非对映选择性(〜20:1)烷基化或亚磺酰基化。相反,苯硫基烷基化以非对映选择性低的方式进行。