Pd‐Senphos Catalyzed
<i>trans</i>
‐Selective Cyanoboration of 1,3‐Enynes
作者:Yuanzhe Zhang、Bo Li、Shih‐Yuan Liu
DOI:10.1002/anie.202005882
日期:2020.9.7
The first trans‐selective cyanoboration reaction of an alkyne, specifically a 1,3‐enyne, is described. The reported palladium‐catalyzed cyanoboration of 1,3‐enynes is site‐, regio‐, and diastereoselective, and is uniquely enabled by the 1,4‐azaborine‐based Senphos ligand structure. Tetra‐substituted alkenyl nitriles are obtained providing useful boron‐dienenitrile building blocks that can be further
描述了炔烃(特别是 1,3-烯炔)的第一个反式选择性氰基硼化反应。报道的钯催化 1,3-烯炔的氰基硼化反应具有位点选择性、区域选择性和非对映选择性,并且由基于 1,4-氮硼烷的 Senphos 配体结构独特实现。获得四取代的烯基腈,提供有用的硼二烯腈结构单元,可以进一步功能化。我们的方法的实用性已通过抗血小板聚集剂 Satigrel 的合成得到证明。