Hydrochloric Acid → HCID 21285251, compound

Participants

Reaction Steps

A mixture of 45.3 parts of N,N-dimethyl-N'-(3,4-dicyanoisothiazol-5-yl)-formamidine, 400 parts of ethanol and 60 parts of concentrated hydrochloric acid is heated at the boil for 2.5 hours, after which it is introduced into 400 parts of water. The colorless precipitate is filtered off under suction, washed with water and dried to give 28.6 parts (87% of theory) of 5-aminoisothiazole-3,4-dicarbonitrile.

Provenance & Evidence