反应 #64718
ord-ed04ba6fcf1b47eab21c355b7420a83a
反应方程式
反应条件
后处理
- 1其他as obtained in Reference Example 2
- 2其他The organic layer was separated off
- 3萃取the water layer was extracted with chloroform
- 4洗涤the combined organic layer was washed with 2N aqueous hydrochloric acid solution
- 5干燥dried over anhydrous magnesium sulfate
- 6浓缩The organic layer was concentrated under reduced pressure
- 7workup.ADDITIONthe residue was suspended in a mixture of 50 ml of saturated aqueous sodium hydrogencarbonate solution and 50 ml of methanol
- 8温度the resulting suspension was heated
- 9温度under reflux for 2 hours
- 10浓缩The suspension was concentrated under reduced pressure, and water
- 11workup.ADDITIONwas added to the residue
- 12萃取The resulting mixture was extracted with ethyl acetate
- 13干燥the extract was dried over anhydrous magnesium sulfate
- 14浓缩The residue was concentrated under reduced pressure
- 15其他was recrystallized
实验过程
In 20 ml of methylene chloride were dissolved 0.62 g of m-anisidine and 5 ml of triethylamine. To this solution was added dropwise under ice cooling 20 ml of methylene chloride containing 2.64 g of 2-[bis(4-acetoxyphenyl)methyl]benzoyl chloride as obtained in Reference Example 2. After stirring for 30 minutes, water was added thereto. The organic layer was separated off, and the water layer was extracted with chloroform. The chloroform layer was combined with the organic layer, and the combined organic layer was washed with 2N aqueous hydrochloric acid solution and dried over anhydrous magnesium sulfate. The organic layer was concentrated under reduced pressure, and the residue was suspended in a mixture of 50 ml of saturated aqueous sodium hydrogencarbonate solution and 50 ml of methanol, and the resulting suspension was heated under reflux for 2 hours. The suspension was concentrated under reduced pressure, and water was added to the residue. The resulting mixture was extracted with ethyl acetate, and the extract was dried over anhydrous magnesium sulfate. The residue was concentrated under reduced pressure, and was recrystallized to afford 1.54 g of the desired product.