Chloroacetic Acid → HCID 12904736, compound

Participants

Reaction Steps

A suspension of 3.0 g of 6-(2,6-dichlorophenyl)-2-methylpyrido[2,3-d]pyrimidin-7-amine and 50 ml of 1,2-dichloroethane is boiled on a steam bath until the distilling vapors reach a temperature of 83° C. The suspension is cooled to room temperature and 1.6 g of chloroacetic acid and 2.6 g of carbonyldiimidazole are added sequentially. The mixture is stirred at room temperature for 3 hours and the resulting solution is immediately chromatographed over 150 g of silica gel. The crude product is eluted with a 99/1 chloroform/methanol mixture. Trituration of this with ether gives pure 2-chloro-N-[6-(2,6-dichlorophenyl)-2-methylpyrido[2,3-d]-pyrimidin-7-yl]acetamide, decomposing above ca 170° C.

Provenance & Evidence