2-Chloroethanol → HCID 12688574, compound

Participants

Reaction Steps

To 4,5,6-triphenyl-2H-pyridazin-3-one (6.0 g) were added 50 ml of dimethylformamide and a solution of sodium hydroxide pellets (0.7 g) dissolved in 5 ml of water. The resultant slurry was stirred at room temperature, while adding dropwise, 1.5 g of 2-chloroethanol. The mixture was heated to 110° C. for 1 hour and then allowed to heat for 16 hours at 90° C., after which time, the dimethylformamide was removed by evacuation. The residue was redissolved in methanol from which the compound was triturated, filtered and washed with petroleum ether to obtain the title compound (25 percent yield), m.p. 189° C. (dec).

Provenance & Evidence