Sodium Acetate → 4-(Piperazin-1-yl)pyridazine

Participants

Reaction Steps

9.3 g of 3,6-dichloro-4-piperazin-1-yl-pyridazine (see 10.2) and 6.5 g sodium acetate are suspended in 100 ml of methanol and hydrogenated with 1 g Pd/C 10% and ambient temperature. The catalyst is suction filtered and the filtrate evaporated to dryness. The product is extracted with chloroform, washed with sodium hydroxide solution and precipitated as the hydrochloride with an ethereal HCl solution. 8.6 g of (V-4) are obtained. M.p>300° C.

Provenance & Evidence