A general synthesis of pyridazino4,3-e1,3,4thiadiazines

摘要

A straightforward synthesis of pyridazino4,3-el ,3,4 thiadiazines 3(a-j) from cyclocondensation of 3,6-dichloro-4-(1-methylhydrazino) pyridazine (2) with various isothiocyanates is described.