Branch‐Selective Alkene Hydroarylation by Cooperative Destabilization: Iridium‐Catalyzed
<i>ortho</i>
‐Alkylation of Acetanilides
作者:Giacomo E. M. Crisenza、Olga O. Sokolova、John F. Bower
DOI:10.1002/anie.201506581
日期:2015.12
An iridium(I) catalyst system, modified with the wide‐bite‐angle and electron‐deficient bisphosphine dFppb (1,4‐bis(di(pentafluorophenyl)phosphino)butane) promotes highly branch‐selective hydroarylation reactions between diverse acetanilides and aryl‐ or alkyl‐substituted alkenes. This provides direct and ortho‐selective access to synthetically challenging anilines, and addresses long‐standing issues
用宽咬角和缺电子双膦 d F ppb(1,4-双(二(五氟苯基)膦基)丁烷)改性的铱(I)催化剂体系可促进不同乙酰苯胺和乙酰苯胺之间的高度支链选择性加氢芳基化反应芳基或烷基取代的烯烃。这提供了对具有合成挑战性的苯胺的直接和邻位选择性获取,并解决了与相关弗里德尔-克来福特烷基化相关的长期存在的问题。