Practical Synthesis of Benzimidazo[1,2-<i>a</i>]quinolines via Rh(III)-Catalyzed C–H Activation Cascade Reaction from Imidamides and Anthranils
作者:Yao Hu、Ting Wang、Yanzhao Liu、Ruifang Nie、Ninghong Yang、Qiantao Wang、Guo-Bo Li、Yong Wu
DOI:10.1021/acs.orglett.9b04256
日期:2020.1.17
We report a novel and practical one-pot Rh(III)-catalyzed strategy to construct benzimidazo[1,2-a]quinolines from readily available imidamides and anthranils. The cascade reaction proceeds via a C-H amination-cyclization-cyclization process in ionic liquid without any additives and possesses simple operation, moderate-to-high yield, and broad substrate scope features, which will provide the reference
我们报告新颖和实用的一锅Rh(III)催化的战略,从容易获得的亚酰胺和邻氨基苯甲酸构造苯并咪唑并[1,2-a]喹啉。该级联反应是通过在不添加任何添加剂的离子液体中通过CH胺化-环化-环化过程进行的,并且操作简单,产率中等至高,并且具有广泛的底物范围特征,将为构建具有生物活性的稠合苯并咪唑提供参考。