反应详情

温度

90 °C

A mixture of 7.00 g (33.9 mmol) of ethyl 2-oxo-2,3-dihydrobenzimidazole-1-carboxylate (IV) and 3.02 ml (37.3 mmol) of sulfuryl chloride in acetic acid (90 ml) was stirred at 90° C. for 1 h. The cooled reaction mixture was poured into ice-water. The precipitated solid was filtered off, washed with water, dried in vacuo and recrystallized from ethyl acetate.

1. customThe cooled reaction mixture
2. filtrationThe precipitated solid was filtered off
3. washwashed with water
4. customdried in vacuo
5. customrecrystallized from ethyl acetate