Metal-Free Meerwein Carboarylation of Alkenes with Anilines: A Straightforward Approach to 3-Benzyl-3-alkyloxindoles
作者:Shi Tang、Dong Zhou、Ying-Chun Wang
DOI:10.1002/ejoc.201402010
日期:2014.6
A metal-free, straightforwardcarboarylation reaction of alkenes with anilines was developed that proceeds through a radical C–H cyclization. In the presence of benzoyl peroxide (5 mol-%), tert-butyl nitrite, and an array of anilines, a wide variety of N-arylacrylamides underwent a tandem Meerwein arylation/C–H cyclization to construct the pharmaceutically important 3-benzyl-3-alkyloxindole scaffold
Copper-catalyzed Meerwein carboarylation of alkenes with anilines to form 3-benzyl-3-alkyloxindole
作者:Shi Tang、Dong Zhou、YouLin Deng、ZhiHao Li、You Yang、JianGuang He、YingChun Wang
DOI:10.1007/s11426-014-5158-z
日期:2015.4
A simple and direct route for double C-C bond formation by copper-catalyzed Meerweincarboarylation process has been developed. In the presence of CuI (5 mol%), tert-butyl nitrite and anilines, a wide variety of N-arylacrylamides underwent tandem Meerwein arylation/C-H cyclization to produce pharmaceutically important 3-benzyl-3-alkyloxindole in moderate to good yield.
report the first metal-free, redox-neutral strategy for radical cascade alkylative radical addition, cyclization of N-arylacrylamides with unactivated alkylchlorides to give corresponding 3,3-disubstituted oxindoles in moderate to good yields. This transformation’s salient features are the utilization of an organo photocatalyst, mild reaction conditions, and broad substrate scope. Moreover, this methodology