反应详情

温度

50 °C

143 g (0.948 moles) of 2-carbamoyl-benzyl alcohol, 2.3 g (0.0226 moles) of sodium bromide, 6.7 g of Adogen 464 and 806 ml of isopropyl acetate were stirred together in a two liter flask and cooled in a water bath. 504 ml of a 14% w/v solution of sodium hypochlorite (1.0 mole) was added to the stirred mixture over 40 minutes and at 30° C. Vigorous agitation was maintained during the addition and for a further 2 hours. The two-phase reaction mixture was then warmed to 50° C. to dissolve all solids. The organic phase was separated and the medium distilled off. The formed solid was recrystallized from 3 volumes of toluene to form 99 g of the desired product as a pale brown solid; m.p. 112° C.; yield 70%.

1. temperaturecooled in a water bath
2. temperatureVigorous agitation was maintained during the addition and for a further 2 hours
3. customThe two-phase reaction mixture
4. dissolutionto dissolve all solids
5. customThe organic phase was separated
6. distillationthe medium distilled off
7. customThe formed solid was recrystallized from 3 volumes of toluene