Catalytic Synthesis of Potassium Acyltrifluoroborates (KATs) through Chemoselective Cross‐Coupling with a Bifunctional Reagent
作者:Dino Wu、Nicole A. Fohn、Jeffrey W. Bode
DOI:10.1002/anie.201904576
日期:2019.8.5
Potassium acyltrifluoroborates (KATs) are increasingly important functional groups, and general methods for their preparation are of great current interest. We report a bifunctional iminium reagent bearing both a tin nucleophile and a trifluoroborate, which was applied in chemoselective Pd0‐catalyzed Migita–Kosugi–Stille cross‐coupling reactions owith aryl and vinyl halides. This method gives access
酰基三氟硼酸钾(KAT)是越来越重要的官能团,制备它们的通用方法引起了人们的极大兴趣。我们报道了一种带有锡亲核试剂和三氟硼酸盐的双功能亚胺试剂,该试剂已用于Pd 0催化的Migita-Kosugi-Stille交叉偶联反应,以及芳基和卤代乙烯。这种方法可以访问以前难以获得的芳族和α,β-不饱和酰基三氟硼酸酯,包括氨基酸衍生的KAT的前体。