反应详情

温度

50 °C

A solution of ethyl 6-chloro-2-methylpyrimidin-4-ylcarbamothioylcarbamate (275 mg, 1.0 mmol) and 1N sodium hydroxide (3.5 eq) was heated and stirred at 50° C. for 2 h. The resulting slurry was cooled to 20-22° C. The solid was collected by vacuum filtration, washed with water, and dried to give 185 mg of 1-(6-chloro-2-methylpyrimidin-4-yl)thiourea (91% yield). 1H NMR (400 MHz, DMSO-d6): δ 2.51 (S, 3H), 7.05 (s, 1H), 9.35 (s, 1H), 10.07 (s, 1H), 10.91 (s, 1H); 13C NMR (125 MHz, DMSO-d6) δ: 25.25, 104.56, 159.19, 159.33, 167.36, 180.91.

1. temperatureThe resulting slurry was cooled to 20-22° C
2. filtrationThe solid was collected by vacuum filtration
3. washwashed with water
4. customdried