Hydrazinecarboxaldehyde → HCID 12726824, compound

Participants

Reaction Steps

A mixture of 9.0 g. of 3-chloro-6-(p-chlorophenyl)pyridazine (prepared as in Example 16), 5.1 g. of formylhydrazine and 60 ml. of butyl alcohol is heated at reflux temperature for 40 hours. The reaction mixture is cooled, filtered and the solid washed with petroleum ether and with water. The material is then heated with 125 ml. of ethanol and the insoluble material is collected by filtration. The filtrate is cooled and the precipitate is collected and combined with the insoluble material collected above. The combined solids are recrystallized from 130 ml. of ethyl alcohol to provide the product of the example as crystals, m.p. 216°-218° C.

Provenance & Evidence