An integration of condensation/Ullmann-type coupling/bicyclization sequences: copper-catalyzed three-component direct synthesis of [1,2,4]triazolo[1,5-b]isoquinolin-5(1H)-ones
作者:Feng-Cheng Jia、Cheng Xu、Qun Cai、An-Xin Wu
DOI:10.1039/c4cc03420a
日期:——
A highly efficient three-component domino protocol has been developed for the synthesis of [1,2,4]triazolo[1,5-b]isoquinolin-5(1H)-ones from simple and readily available o-halogenated benzohydrazides, aldehydes and nitriles. This domino process involves sequential selective condensation, copper-catalyzed intermolecular C-arylation and bicyclization. Notably, the use of ligands and anaerobic conditions
已经开发了一种高效的三组分多米诺协议,用于从简单易得的邻卤代苯并肼,醛和苯并[1,2,4]三唑并[1,5-b]异喹啉-5(1H)-酮合成。腈。该多米诺过程涉及顺序选择性缩合,铜催化的分子间C-芳基化和双环化。值得注意的是,在该反应中可以避免使用配体和厌氧条件。