反应详情

温度

140 °C

25.5 g (0.1 moles) of the product obtained in step (a) above, 13.4 g (0.1 moles) of trimethylolpropane and 0.05 g of p-toluenesulfonic acid were placed in a flask fitted with a Dean & Stark condenser and the contents of the flask were heated at 140° C. for about 2 hours. The reaction was stopped when a theoretical amount of ethyl alcohol was evaporated off, after which the reaction solution was distilled under reduced pressure using a Vigreaux distillation column to yield 16 g (63%) of the desired product having a boiling point of 81°-83° C./0.1 mmHg.

1. customfitted with a Dean & Stark condenser
2. customwas evaporated off
3. distillationafter which the reaction solution was distilled under reduced pressure
4. distillationa Vigreaux distillation column