Ethyl chloroformate → HCID 20326483, compound

Participants

Reaction Steps

A mixture of 1.0 g. of 6-(p-chlorophenyl)-3-hydrazinopyridazine and 0.65 g. of diisopropylethylamine in 25 ml. of dioxane are placed in a flask and warmed slightly. To this is added 0.5 g. (0.45 ml.) of ethyl chloroformate and the reaction is stirred for one hour. The dioxane is removed on a rotating evaporator and ethanol is added to the residue resulting in a precipitate. This precipitate is recrystallized from ethanol giving a yellow solid, m.p. 176°-180° C.

Provenance & Evidence