反应详情

2-Chloro-7,7-dimethyl-7,8-dihydro-6H-quinolin-5-one (0.315 g, 1.5 mmol) and potassium carbonate (0.83 g, 6 mmol) were added to a solution of benzylamine (0.2 g, 1.8 mmol) in dry acetonitrile (4 ml). The mixture was stirred at reflux for 48 h. DMSO (3 ml) and sodium hydride (0.05 g) were added and heating was continued for additional 5 h. Water (10 ml) was added and the mixture was extracted with chloroform (2×10 ml). The extract was dried over sodium sulfate, filtered, and evaporated under reduced pressure. The residue was purified by flash chromatography on silica gel (chloroform-methyl alcohol, 40:1), then treated by dry HCl in diethyl ether to give the title compound (0.1 g, 21%) as a colorless solid.

1. temperatureat reflux for 48 h
2. temperatureheating
3. extractionthe mixture was extracted with chloroform (2×10 ml)
4. dry with materialThe extract was dried over sodium sulfate
5. filtrationfiltered
6. customevaporated under reduced pressure
7. customThe residue was purified by flash chromatography on silica gel (chloroform-methyl alcohol, 40:1)
8. additiontreated by dry HCl in diethyl ether