Asymmetric alkylation of N-acylsultams: A general route to enantiomerically pure, crystalline C(α,α)-disubstituted carboxylic acid derivatives
作者:Wolfgang Oppolzer、Robert Moretti、Silvia Thomi
DOI:10.1016/s0040-4039(01)93810-9
日期:1989.1
Successive treatment of acylsultams with nBuLi or NHMDS and primary alkyl halides, followed by crystallization, gave pure C(α)-alkylation products and, via their non-destructive cleavage, enantiomerically pure alcohols or carboxylic acids .
用n BuLi或NHMDS和伯烷基卤连续处理酰基磺酰胺,然后结晶,得到纯C(α)-烷基化产物,并通过它们的非破坏性裂解,得到对映体纯的醇或羧酸。