Highly Diastereoselective Preparation of (<i>E</i>)-Alkenylsilanes Bearing an α-Chiral Center
作者:Sylvie Perrone、Paul Knochel
DOI:10.1021/ol063097o
日期:2007.3.1
The copper(I)-mediated anti-S(N)2' allylic substitution allows a highly stereoselective preparation of alkenylsilanes bearing a chiral center in the alpha-position with high transfer of chirality. These alkenylsilanes were converted into alpha,beta-unsaturated ketones or into the corresponding boronic esters without loss of the chiral information. [reaction: see text]
铜(I)介导的抗-S(N)2'的烯丙基取代可以高度立体选择性地制备在α-位带有手性中心的烯基硅烷,且手性转移率很高。在不损失手性信息的情况下,将这些烯基硅烷转化为α,β-不饱和酮或相应的硼酸酯。[反应:看文字]