反应详情

To 134 g of terephthalaldehyde and 62 g of ethylene glycol, was added 400 mL of toluene, and then was added thereto 2 g of p-toluenesulfonic acid, to conduct dehydration reaction under azeotropic conditions. After the time when the reaction of water stopped in the reaction, the reaction liquid was heated under reflux for another 2 hours, followed by cooling. The resultant reaction liquid was poured into an aqueous sodium bicarbonate solution. The organic phase was concentrated, and then purified by silica gel column chromatography (yield amount 122 g, and yield 68.5%).

1. additionwas added
2. customdehydration reaction under azeotropic conditions
3. customstopped in the reaction
4. customthe reaction liquid
5. temperaturewas heated
6. temperatureunder reflux for another 2 hours
7. temperatureby cooling
8. customThe resultant reaction liquid
9. concentrationThe organic phase was concentrated
10. custompurified by silica gel column chromatography (yield amount 122 g, and yield 68.5%)