Hydrazinecarboxylic acid, ethyl ester → HCID 20326489, compound

Participants

Reaction Steps

A 3.15 g. portion of 6-(m-cyanophenyl)-5-methyl-3-chloropyridazine and 2.85 g. of ethyl carbazate in 50 ml. of butanol is stirred at reflux temperature for 4 hours. The mixture is concentrated free of solvent and the oily concentrate is triturated with water and a little ether. The resulting solid is recovered by filtration, air dried and recrystallized several times from ethanol giving a white solid, m.p. 189°-190° C.

Provenance & Evidence