Toluene → HCID 13206635, compound

Participants

Reaction Steps

80 ml of toluene were added to a solution of 10.0 g (48.2 millimoles) of 1,4-dihydro-4-imino-1-phenylpyridazine hydrochloride in 80 ml of water. First 6.8 g (48.4 millimoles) of benzoyl chloride and then, in the course of 15 minutes, 4.0 g (100 millimoles) of NaOH in 20 ml of water were added to the two-phase system at room temperature, whilst stirring, the mixture was stirred for a further hour at room temperature and the product was then filtered off under suction. The solid obtained was washed with water, dried and recrystallized from ethanol. 9.5 g (72% of theory) of 4-benzoylimino-1,4-dihydro-1-phenylpyridazine were isolated as yellow crystals of melting point 175°-176° C.

Provenance & Evidence