反应详情

2-Chloropyrimidine-5-carboxylic acid (0.75 g), 2-methylimidazole (0.117 g) and potassium carbonate (1.96 g) in 3.75 mL of N,N-dimethylformamide are heated in microwave at 50° C. for 30 min, then cooled to room temperature and acidified with 3 mL of 1 N HCl, followed by addition of conc. HCl to pH 2. The precipitate is filtered, washed with minimum amount of water, diethyl ether and dried in vacuo to afford the title compound. LC (method 20): tR=0.48 min; Mass spectrum (APCI): m/z=205 [M+H]+.

1. filtrationThe precipitate is filtered
2. washwashed with minimum amount of water, diethyl ether
3. customdried in vacuo