Migratory Reductive Acylation between Alkyl Halides or Alkenes and Alkyl Carboxylic Acids by Nickel Catalysis
作者:Jun He、Peihong Song、Xianfeng Xu、Shaolin Zhu、You Wang
DOI:10.1021/acscatal.9b00521
日期:2019.4.5
cross-coupling has been achieved through NiH-catalyzed chainwalking and subsequent cross-coupling from two abundant starting materials, alkyl bromides, and carboxylic acids. This strategy allows the direct acylation of the benzylic sp3 C–H bond with high yield as a single regioisomer. As an alternative, the alkyl bromide could be replaced by the proposed olefin intermediate and commercially available n-PrBr
通过NiH催化的链走反应以及随后从两种丰富的起始原料(烷基溴化物和羧酸)的交叉偶联,实现了温和的迁移性还原性酰基交叉偶联。这种策略可以将苄基sp 3 C–H键直接酰化,并以高收率作为单一的区域异构体。作为替代,烷基溴可以用提出的烯烃中间体和可商购的正-PrBr代替,以实现远程加氢酰化过程。