反应详情

温度

85 °C

Next, to toluene (50 ml) were added 2-[(3-benzyloxyphenyl)methylamino]ethanol (10.3 g, 39.9 mmol), pivaloyl chloride (9.6 g, 79.8 mmol), and pyridine (7.6 g, 95.8 mmol). The mixture was stirred at room temperature for 1 hour and further at 85° C. for 2 hours. After pyridine hydrochloride was removed by filtration, the filtrate was concentrated. The product was purified by silica gel chromatography to give 2,2-dimethylpropionic acid 2-[(3-benzyloxyphenyl)methylamino]ethyl ester as a colorless oily matter (yield: 8.9 g (65.1%)).

1. customAfter pyridine hydrochloride was removed by filtration
2. concentrationthe filtrate was concentrated
3. customThe product was purified by silica gel chromatography