Complete Regio- and Stereoselective Construction of Highly Substituted Silyl Enol Ethers by Three-Component Coupling
作者:Akira Tsubouchi、Shouko Enatsu、Ryo Kanno、Takeshi Takeda
DOI:10.1002/anie.201003152
日期:2010.9.17
control: Trisubstituted silyl enol ethers were prepared by three‐component coupling of α‐silyl α,β‐unsaturated ketones, organocopper reagents, and organic halides with complete regio‐ and stereoselectivity (see scheme). The reaction proceeded through a 1,3 migration of the silyl group via cyclic silicate intermediates, which controlled the configuration of the silyl enol ethers.
完全控制的三种成分:三取代的甲硅烷基烯醇醚是通过α-甲硅烷基α,β-不饱和酮,有机铜试剂和有机卤化物的三成分偶联而制备的,具有完全的区域和立体选择性(参见方案)。该反应通过经由环状硅酸盐中间体的甲硅烷基的1,3迁移而进行,该中间体控制了甲硅烷基烯醇醚的构型。