Ionic liquid-accelerated N-arylation of 5-arylidene-2,4-thiazolidinediones with diaryliodonium salts

An efficient method for the synthesis of N-aryl-5-arylidene-2,4-thiazolidinediones has been developed involving the N-arylation of 5-arylidene-2,4-thiazolidinediones derivatives with diaryliodonium salts in the ionic liquid [bmim]PF 6 (1-butyl-3-methylimidazolium hexafluorophosphate).