Acetic Anhydride → HCID 21246481, compound

Participants

Reaction Steps

15.0 g (72.2 millimoles) of 1,4-dihydro-4-imino-1-phenylpyridazine hydrochloride in 100 ml of acetic anhydride were heated at 100° C. for 2 hours, while stirring. The mixture was cooled and then filtered under suction, and the residue was washed with acetone and recrystallized from ethanol. 13.3 g (74% of theory) of 4-acetylimino-1,4-dihydro-1-phenylpyridazine hydrochloride were isolated as colorless crystals of melting point 257°-260° C.

Provenance & Evidence