One-pot synthesis of substituted indolines via a copper-catalyzed sequential multicomponent/C–N coupling reaction
作者:Hongwei Jin、Bingwei Zhou、Zhi Wu、Yang Shen、Yanguang Wang
DOI:10.1016/j.tet.2010.11.094
日期:2011.2
One-pot synthesis of 2-(N-sulfonylimino)indolines has been developed. The procedure combines the copper-catalyzed three-component reaction of sulfonyl azides, o-bromophenylacetylenes, and amines and the copper-catalyzed intramolecular C–N coupling in one sequence, which afforded the products in moderate to good yields. The resulting 2-(N-sulfonylimino)indolines could be easily transformed to pharmaceutically
已经开发了一锅合成2-(N-磺酰亚胺基)二氢吲哚。该方法将铜催化的磺酰叠氮化物,邻-溴苯基乙炔和胺的三组分反应与铜催化的分子内C-N偶联反应按一个顺序进行,从而使产物的收率适中至良好。所得的2-(N-磺酰亚胺基)二氢吲哚可容易地转化成药学上有价值的羟吲哚(吲哚-2-酮)。