反应详情

温度

0 °C

27.4 g (0.1 mol) of the compound from Example II are dissolved in 200 ml of carbon tetrachloride and the solution is heated to the boiling point. After addition of 0.82 g of azobisisobutyronitrile, 18.7 g (0.105 mol) of N-bromosuccinimide are added in portions, the mixture is then refluxed for 1 hour and cooled to 0° C. and the succinimide is filtered off. After concentration of the filtrate, the product precipitates out. It is washed with petroleum ether (40/60) and dried.

1. temperaturethe solution is heated to the boiling point
2. additionare added in portions
3. temperaturethe mixture is then refluxed for 1 hour
4. filtrationthe succinimide is filtered off
5. customAfter concentration of the filtrate, the product precipitates out
6. washIt is washed with petroleum ether (40/60)
7. customdried