反应详情

温度

0 °C

50 g (0.245 mol) of m-trifluoromethyl-benzamidoxime and 33.7 g (0.6 mol) of potassium hydroxide was dissolved in a mixture of dimethyl sulphoxide and 170 ml of water, and the mixture was cooled to 0° C. 48 ml (0.6 mol) of epichlorohydrine was added, and the reaction mixture was stirred at 0° C. for 5 hours, then kept in a refrigerator overnight. Next day 250 ml of water was added, and the mixture was extracted with ethyl acetate (4×250 ml). The combined organic phases were washed with water, dried, treated with charcoal and evaporated to dryness, to yield m-trifluoromethyl-N-(2,3-epoxypropoxy)-benzamidine, as a colorless oil.

1. customkept in a refrigerator overnight
2. extractionthe mixture was extracted with ethyl acetate (4×250 ml)
3. washThe combined organic phases were washed with water
4. customdried
5. additiontreated with charcoal
6. customevaporated to dryness