Copper-catalyzed alkylarylation of activated alkenes using isocyanides as the alkyl source: an efficient radical access to 3,3-dialkylated oxindoles
作者:Yaping Zhao、Zhenghua Li、Upendra K. Sharma、Nandini Sharma、Gonghua Song、Erik V. Van der Eycken
DOI:10.1039/c6cc02024k
日期:——
A novel and efficient protocol for the synthesis of 3,3-dialkylated oxindoles is described. The method involves a copper-catalyzed tandem radical addition/cyclization of N-arylacrylamides with the alkyl radicals generated from isocyanides....
Organocatalyzed arylalkylation of activated alkenes via decarboxylation of PhI(O2CR)2: efficient synthesis of oxindoles
作者:Tao Wu、Hao Zhang、Guosheng Liu
DOI:10.1016/j.tet.2012.03.051
日期:2012.7
A novel organocatalyzed arylalkylation of activated alkenes has been developed. This reaction was initiated from the decomposition of PhI(O2CR)(2) to generate alkyl radical, followed by addition to alkenes. Then the formed radical was trapped by aromatic ring to generate the cyclized products. This method presents an efficient road to synthesis of a variety of oxindoles. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.