Phosphorus oxychloride → HCID 67177108, compound

Participants

Reaction Conditions

Reaction Steps

7.4 g of phosphorus pentachloride were added at 60° C. to a suspension of 8.9 g of N-[2-(4-chloro-benzyl)-4,6-dihydroxy-pyrimidin-5-yl]-3-fluoro-benzamide hydrochloride in 100 ml of dry chloroform. After heating at 60° C. for several hours, 5.5 g of phosphorus oxychloride were added and the reaction mixture was stirred at 75° C. for 20 h. After cooling to room temperature, the precipitate was filtered off and purified by silica gel chromatography (gradient from ethyl acetate to dichloromethane to dichloromethane/methanol 3:1). The product fractions were evaporated and the residue washed with chloroform and water and dried in an infrared dryer until constant weight to give 0.47 g of the title compound.

Provenance & Evidence