作者:He Wang、Songjie Yu、Zisong Qi、Xingwei Li
DOI:10.1021/acs.orglett.5b01232
日期:2015.6.5
alkylation of arenes using commercially available alkyltrifluoroborates is disclosed. Oximes, heteroarenes, azomethines, N-nitrosoamines, and amides are viable directing groups to entail this transformation. The alkyl group in the boron reagent can be extended to primary alkyls, benzyl, and cycloalkyls, and the reaction proceeded with controllable mono- and dialkylation selectivity when both ortho C–H
公开了使用可商购的烷基三氟硼酸酯的铑(III)催化的芳烃直接烷基化。肟,杂芳烃,偶氮甲碱,N-亚硝基胺和酰胺是进行这种转化的可行的导向基团。硼试剂中的烷基可以扩展为伯烷基,苄基和环烷基,当两个邻位C-H位都可访问时,反应以可控的单烷基化和二烷基化选择性进行。