Copper-Catalyzed Direct N-Arylation of N-Arylsulfonamides Using Diaryliodonium Salts in Water.

An efficient copper-catalyzed N-arylation of N-arylsulfonamides with diaryliodonium salts is reported. The reaction employs diaryliodonium salts and N-arylsulfonamides in water at room temperature, giving the products in moderate to excellent yields. (C) 2014 Elsevier Ltd. All rights reserved.