反应详情

Add a solution of sodium bicarbonate (2.12 g, 25.2 mmol) in water (10 mL) to a solution of suberic acid monomethyl ester (4.75 g, 25.2 mmol) in methanol (50 mL) at room temperature and stir the mixture for 30 minutes. Remove the solvent under reduced pressure and add the residue to a solution of 2-bromoacetophenone (5.0 g, 25.1 mmol) in acetone (150 mL) at room temperature under nitrogen. Heat the mixture at reflux for 10 hours and then remove the solvent under reduced pressure. Dilute the residue with diethyl ether (300 mL), stir for 20 minutes, filter through a short silica gel column, and wash with diethyl ether (2×50 mL). Remove the solvent under reduced pressure to provide octanedioic acid methyl ester 2-oxo-2-phenylethyl ester (6.9 g, 90%).

1. customRemove the solvent under reduced pressure
2. temperatureHeat the mixture
3. temperatureat reflux for 10 hours
4. customremove the solvent under reduced pressure
5. additionDilute the residue with diethyl ether (300 mL)
6. stirringstir for 20 minutes
7. filtrationfilter through a short silica gel column
8. washwash with diethyl ether (2×50 mL)
9. customRemove the solvent under reduced pressure