Dual roles of trimethylsilyl group for specific generation of enolates from β-ketoalkyltrimethylsilanes. Regiospecific preparation of two types of acyclic aldols
作者:Isao Kuwajima、Tan Inoue、Toshio Sato
DOI:10.1016/s0040-4039(01)85762-2
日期:1978.1
The highly enantioselective transformation of silylketenes into α-silylthioesters catalysed by cinchona alkaloids
作者:Alexander J Blake、Christopher L Friend、Robert J Outram、Nigel S Simpkins、Andrew J Whitehead
DOI:10.1016/s0040-4039(01)00304-5
日期:2001.4
The reaction of silylketenes with thiophenol, mediated by cinchona alkaloid catalysts, proceeds to give alpha -silylthioester products in good chemical yield and with enantiomeric excess values in the range 79-93%. The absolute configuration of one of the thioester products was determined by X-ray diffraction. (C) 2001 Elsevier Science Ltd. All rights reserved.
A new rearrangement reaction of 2-chloro-1-trimethylsilyl alkoxide. Preparation of β-hydroxyalkyl- or β-ketoalkyltrimethylsilanes