Catalytic Cyclothiomethylation of Diamides and Dihydrazides of (Thio)carbonic Acid Using Bis(dimethylamino)methane, H2S, and Na2S·9H2O
摘要:
An efficient method for the synthesis of N,S-heterocycles with (thio)amide fragments by the catalytic cyclothiomethylation of diamides and dihydrazides of (thio)carbonic acid with H2S, sodium sulfide crystallohydrate, or bis(dimethylamino)methane has been developed.