Herein we described a rhodium-catalyzed formal [4+2]-cyclization of 2-aryl-1H-benzo[d]imidazoles with maleimides through C−H bond activation process to selectively construct a series of functionalized cis-dihydro-benzimidazo[2,1-a]isoquinolines. The reaction features a broad substrate scope.
在此,我们描述了铑催化的 2-芳基-1 H-苯并[ d ]咪唑与马来酰亚胺通过 CH 键活化过程的形式 [4+2]-环化,以选择性地构建一系列功能化的顺式-二氢-苯并咪唑[ 2,1- a ]异喹啉。该反应具有广泛的底物范围。
Modular Assembly of Ring-Fused and π-Extended Phenanthroimidazoles via C–H Activation and Alkyne Annulation
作者:Liyao Zheng、Ruimao Hua
DOI:10.1021/jo500401n
日期:2014.5.2
practical and modular assembly of diverse ring-fused phenanthroimidazoles, including an unusual rearrangement product using aryl-alkyl asymmetric alkyne and a thiophenefused product which could serve as a Fe3+ fluorescent probe. The feasibility of the one-pot synthesis and ruthenium(II)-catalyzed versions of this reaction was also verified.