Dithiocarbamates as an Efficient Intermediate for the Synthesis of Symmetrical Substituted 2,5‐Diamino‐1,3,4‐thiadiazoles in Water

Synthesis of symmetrical substituted 2,5‐diamino‐1,3,4‐thiadiazoles is described. Reaction of easily prepared dithiocarbamates with hydrazine gives the corresponding thiadiazoles in moderate to good yields. This method is new, efficient, and simple especially in the work‐up procedure.