Triethylamine → HCID 178509128, compound

Participants

Reaction Steps

9.6 g (94.9 millimoles) of triethylamine were added dropwise to 7.5 g (36.1 millimoles) of 1,4-dihydro-4-imino-1-phenylpyridazine hydrochloride and 8.3 g (39.6 millimoles) of 3,5-dichlorobenzoyl chloride in 100 ml of methylene chloride at room temperature, while stirring. Stirring was continued at room temperature for a further 2 hours, after which the product ws filtered off under suction, washed first with water and then with acetone and recrystallized from toluene. 8.0 g (64% of theory) of 4-(3,5-dichlorobenzoyl)-imino-1,4-dihydro-1-phenylpyridazine were isolated as yellow crystals of melting point 242°-244° C.

Provenance & Evidence