Regioselective one-pot C–N coupling of substituted naphthoquinones: selective intramolecular ring fusion of sulfonamides
作者:Wenying Yu、Chenglong Li
DOI:10.1016/j.tet.2013.11.041
日期:2014.1
The first one-pot copper-catalyzed highly regioselective C - N bond formation between aryl/alkyl amines and sulfonamide-substituted naphthoquinones was accomplished. Facile chemoselective routes obtained diverse ring-opening 6-amino/anilino-naphthalen-dione-1-sulfonamides and ring-fused 6-amino/aniline5H-naphth[1,8-cd]isothiazol-5-one,1,1 -dioxides with great functional group tolerance. Regiochemistry was confirmed by 1D- and 2D-NMRs. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.