Palladium-Catalyzed C8 Alkylation of 1-Naphthylamides with Alkyl Halides via Bidentate-Chelation Assistance
作者:Lehao Huang、Xudong Sun、Qian Li、Chenze Qi
DOI:10.1021/jo500932x
日期:2014.7.18
alkylation of C8–H bonds in 1-naphthylamides containing a quinolinamide or picolinamide moiety as a bidentate directing group with alkyl halides is reported. The amide directing group can be easily hydrolyzed under basic conditions. Various alkyl halides including alkyl iodides and benzyl bromide or chloride can be employed as coupling partners, exclusively providing 8-alkyl-1-naphthylamide derivatives
据报道,钯催化的1-萘甲酰胺中的C8–H键区域选择性烷基化包含喹啉酰胺或吡啶甲酰胺部分,作为带有烷基卤化物的双齿导向基团。酰胺指导基团在碱性条件下可以容易地水解。各种烷基卤化物,包括烷基碘化物和苄基溴化物或氯化物可以用作偶联伙伴,仅提供8-烷基-1-萘酰胺衍生物。