Hydrochloric Acid → HCID 57063205, compound

Participants

Reaction Steps

A mixture of 32.9 g (0.1 moles) of 1,7,7-trimethyl-2-bicyclo(2,2,1)heptylidene-(6-morpholino-3-pyridazinyl)-hydrazine (prepared by the process of Example 8, Step b), 660 ml of chloroform and 660 ml of concentrated hydrochloric acid is heated at 60° while stirring under a nitrogen atmosphere for 6 hours in such a way that the chloroform layer is separated from the reaction mixture every hour and replaced by fresh solvent (660 ml). The camphor recovered can be condensed with 6-chloro-3-pyridazinylhydrazine to give pure 1,7,7-trimethyl-2-bicyclo(2,2,1)heptylidene-(6-chloro-3-pyridazinyl)-hydrazine in 65-72% yield.

Provenance & Evidence