Novel cellulose derivative, process for preparing the same and sulfur dioxide gas permselective membrane comprising the same
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP0213944B1
公开(公告)日:1991-10-23
A Two-Step Synthesis of α-Keto Vinyl Carbinols from Ketones
作者:Laurent Debien、Samir Z. Zard
DOI:10.1021/ol4029594
日期:2013.12.6
Conjugate addition of lithiumenolates onto terminal alkynyl- and allenyl-sulfoxides furnishes the corresponding allylic sulfoxides. The latter readily undergo a Mislow–Braverman–Evans rearrangement to yield the targeted α-keto vinyl carbinols. This two-step procedure does not require purification of the intermediates and constitutes the shortest approach to α-keto vinyl carbinols.