Ethyl chloroformate → HCID 20326531, compound

Participants

Reaction Steps

A solution of 4.4 g. of 6-phenyl-3-(1-methylhydrazino)pyridazine, 3.4 g. of N,N-diisopropylethylamine and 50 ml. of dixane is prepared. To the solution is added 2.6 g. of ethyl chloroformate and the mixture is stirred for 2 hours. The solvent is removed under vacuum and to the residue is added ethanol and water. Filtration gives the product which is recrystallized from ethanol to give crystals, m.p. 129°-130° C.

Provenance & Evidence