Water → 6-(4-Chlorobenzoyl)-3-propargyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-dione

Participants

Reaction Steps

3-propargyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-2,4-dione hydrochloride (790 mg) was suspended in methylene chloride, triethylamine (0.95 ml) and 4-chlorobenzoyl chloride (0.42 ml) were added under ice cooling and the resultant mixture was stirred at the same temperature for 30 minutes. To the reaction solution, water was added and the resultant mixture was concentrated. To the residue, diethyl ether was added and insoluble matter was separated by filtration to obtain the titled compound (894 mg) as a white powder. The resultant compound was used in a next reaction without further purifying.

Provenance & Evidence