反应详情

温度

80 °C

825 mg (3.65 mmol) of 4,4-diphenylbutane-1-ol, 0.1 ml (0.72 mmol) of triethylamine and 0.40 ml (5.19 mmol) of diketene were stirred in 30 ml of toluene under heating at 80° C. for 4 hours. After the addition of saturated aqueous sodium hydrogencarbonate solution at room temperature followed by the extraction with ethyl acetate, the organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to obtain the title compound.

1. extractionfollowed by the extraction with ethyl acetate
2. dry with materialthe organic layer was dried over anhydrous sodium sulfate
3. concentrationconcentrated under reduced pressure