Nickel-Catalyzed Decarboxylative Alkenylation of Anhydrides with Vinyl Triflates or Halides
作者:Hui Chen、Shuhao Sun、Xuebin Liao
DOI:10.1021/acs.orglett.9b01048
日期:2019.5.17
Decarboxylative cross-coupling of aliphatic acid anhydrides with vinyl triflates or halides was accomplished via nickel catalysis. This methodology works well with a broad array of substrates and features abundant functional group tolerance. Notably, our approach addresses the issue of safe and environmental installation of methyl or ethyl group into molecular scaffolds. The method possesses high chemoselectivity
Ir-Catalyzed Distal Branch-Selective Hydroarylation of Unactivated Internal Alkenes with Benzanilides via C–H Activation along with Consecutive Isomerization
We herein report a synergistic strategy of C–Hactivation and consecutive isomerization catalyzed by an Ir catalyst to selectively obtain branched isomers as C–H alkylated products of benzanilide derivatives. A well-tuned ligand and a directing group are crucial to achieve this selectivity. The scope of this reaction is demonstrated by the use of a variety of substituents and complex molecules.