Water → HCID 15595675, compound

Participants

Reaction Steps

To 3.0 g of N-[3-(3-methyl-1,2,4-triazolo[4,3-b]pyridazin-6-yl)phenyl]acetamide in 250 ml of dimethylformamide under argon was added 0.6 g of sodium hydride (50% in oil). The mixture was stirred for one hour, then 1.38 ml of propargyl bromide was added. This mixture was stirred for 12 hours then poured into 200 ml of water and extracted with 150 ml portions of dichloromethane. The extracts were combined, dried and evaporated in vacuo. The residue was chromatographed on 300 g of silica gel with dichloromethane-methanol (97:3) as the eluent. Fractions containing the desired product were collected, evaporated in vacuo and recrystallized from dichloromethanhexane to give 2.5 g of orange crystals mp 195°-198° C.

Provenance & Evidence