反应详情

In a flask is placed 4-chloro-5,8-dimethyl-6-nitroquinoline (1.52 g, 5.4 mmol) with sodium methoxide (2.27 g, 4.2 mmol) and methanol (25 mL). The mixture is refluxed under argon with stirring for 21 hours, diluted with water (100 mL) and methanol (50 mL) and extracted with dichloromethane (2×200 mL). The organic layer is dried over potassium carbonate, filtered and evaporated. The product is purified by flash chromatography (7/3 hexanes/ethyl acetate), yielding 5,8-dimethyl-4-methoxy-6-nitroquinoline.

1. customIn a flask is placed
2. temperatureThe mixture is refluxed under argon
3. extractionextracted with dichloromethane (2×200 mL)
4. dry with materialThe organic layer is dried over potassium carbonate
5. filtrationfiltered
6. customevaporated
7. customThe product is purified by flash chromatography (7/3 hexanes/ethyl acetate)