Isobutyryl chloride → HCID 21246415, compound

Participants

Reaction Steps

5.0 g (21.4 millimoles) of 1,4-dihydro-4-imino-1-phenylpyridazine hydrochloride in 20 ml of isobutyryl chloride were refluxed for 20 hours, while stirring. The mixture was cooled and then filtered under suction, and the residue was washed with acetone and recrystallized from ethanol/methyl tert.-butyl ether. 4.5 g (67% of theory) of 1,4-dihydro-4-isobutyrylimino-1-phenylpyridazine hydrochloride were isolated as colorless crystals of melting point 240°-242° C.

Provenance & Evidence