Stereoselective halo-succinimide mediated γ-halogenations of substituted α-trialkylsilyl-β,γ-unsaturated esters
作者:Lisa M. Fealy、Michael P. Jennings
DOI:10.1016/j.tetlet.2019.151384
日期:2020.1
allylsilanes with halo-succinimides (NXS, X = Cl, Br, and I) has been investigated. It has been shown that these reactions readily allow for good yields and excellent diastereoselectivities (up to >20:1) for a series of α-ester allylsilanes and halo-succinimide reagents, thereby providing a straightforward approach of preparing γ-halo-(E)-α,β-unsaturated esters.
已经研究了各种α-酯烯丙基硅烷与卤代琥珀酰亚胺(NXS,X = Cl,Br和I)的卤化作用。已经证明,这些反应对于一系列α-酯烯丙基硅烷和卤代琥珀酰亚胺试剂而言,容易获得良好的产率和出色的非对映选择性(高达> 20:1),从而提供了制备γ-卤代-(E的简单方法)-α,β-不饱和酯。