反应详情

A mixture of 3.12 g (0.02 mole) ethyl 2-acetyl-2-butenoate and 3.56 g (0.02 mole) N-bromosuccinimide in 50 ml of carbon tetrachloride was heated at reflux for 19 hours. After cooling, the insoluble succinimide was removed by filtration and the solution concentrated by rotary evaporation. Distillation of the crude product gave 0.73 g (24%) of ethyl 2-methyl-3-furoate, bp 87°-9° C. (20 mm).

1. temperaturewas heated
2. temperatureat reflux for 19 hours
3. temperatureAfter cooling
4. customthe insoluble succinimide was removed by filtration
5. concentrationthe solution concentrated by rotary evaporation
6. distillationDistillation of the crude product