Chirality Transfer from Epoxide to Carbanion: Base-Induced Alkylation ofO-Carbamoyl Cyanohydrins of β-Silyl-α,β-epoxy Aldehyde
作者:Michiko Sasaki、Eiji Kawanishi、Yuri Shirakawa、Masatoshi Kawahata、Hyuma Masu、Kentaro Yamaguchi、Kei Takeda
DOI:10.1002/ejoc.200800300
日期:2008.6
Enantioselective C–C bond formation at an α-position of a nitrile group with an external electrophile can be realized, although in modest ee, with the aid of both the concerted process of an epoxysilane rearrangement and a carbamoyl group. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
借助环氧硅烷重排和氨基甲酰基的协同过程,可以实现在腈基的 α 位与外部亲电子试剂形成对映选择性 C-C 键,尽管 ee 适中。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)