Concise copper-catalyzed one-pot tandem synthesis of benzimidazo[1,2-b]isoquinolin-11-one derivatives
作者:Juyou Lu、Xiaoyu Gong、Haijun Yang、Hua Fu
DOI:10.1039/c0cc00185f
日期:——
A simple and efficient copper-catalyzed one-pot tandem method has been developed for synthesis of benzimidazo[1,2-b]isoquinolin-11-one derivatives via reactions of substituted 2-halo-N-(2-halophenyl)benzamides with alkyl 2-cyanoacetates or malononitrile under mild conditions.
Regioselective <i>ortho</i> halogenation of <i>N</i>-aryl amides and ureas <i>via</i> oxidative halodeboronation: harnessing boron reactivity for efficient C–halogen bond installation
作者:Ganesh H. Shinde、Ganesh S. Ghotekar、Francoise M. Amombo Noa、Lars Öhrström、Per-Ola Norrby、Henrik Sundén
DOI:10.1039/d3sc04628a
日期:——
ortho position of N-aryl amides and ureas represents a tool to prepare motifs that are ubiquitous in biologically active compounds. To construct such prevalent bonds, most methods require the use of precious metals and a multistep process. Here we report a novel protocol for the long-standing challenge of regioselective ortho halogenation of N-aryl amides and ureas using an oxidative halodeboronation