反应详情

4 g of 2-trifluoromethylbenzimidazole, 2.8 g of chloroacetone, 3.4 g of potassium carbonate and 0.32 g of potassium iodide are dissolved in 50 ml of acetone and boiled under reflux for 4 h. After cooling, the precipitate is filtered off, washed with acetone and dried in a vacuum. 1-(2-trifluoromethylbenzimidazol-1-yl)-propanone is thus obtained.

1. temperatureunder reflux for 4 h
2. temperatureAfter cooling
3. filtrationthe precipitate is filtered off
4. washwashed with acetone
5. customdried in a vacuum