Geminal Bis(silyl) Enal: A Versatile Scaffold for Stereoselective Synthesizing C<sup>3</sup>,O<sup>1</sup>-Disilylated Allylic Alcohols Based upon Anion Relay Chemistry
作者:Linjie Yan、Xianwei Sun、Hongze, Li、Zhenlei Song、Zengjin, Liu
DOI:10.1021/ol400145z
日期:2013.3.1
Geminal bis(silyl) enal 2a is shown to be a useful scaffold for anion relay chemistry (ARC) aimed at the stereoselective synthesis of C3,O1-disilylated allylic alcohols. The ARC reaction is initiated by the addition of an alkyllithium to the aldehyde and features a CuCN-promoted Csp2-to-O 1,4-silyl migration to generate a vinylcuprate that reacts with activated electrophiles.
显示了双(甲硅烷基)烯醛2a是用于阴离子中继化学(ARC)的有用的支架,旨在立体选择性地合成C 3,O 1-二烯丙基化的烯丙基醇。ARC反应是通过向醛中添加烷基锂而引发的,其特征在于CuCN促进的C sp2 -O-1,4-甲硅烷基迁移,生成乙烯基铜酸酯,该乙烯基铜酸酯与活化的亲电试剂反应。