反应详情

Part D A mixture of ethyl 2,2-dimethyl-3-[(3-nitroquinolin-4-yl)amino]propanoate (59 g), sodium hydrosulfite (109 g, 532 mmol), potassium carbonate (103 g, 744 mmol), and ethyl viologen dibromide (0.50 g, 1.3 mmol), dichloromethane (350 mL), and water (350 mL) was stirred overnight at ambient temperature. The aqueous layer was separated and extracted with dichloromethane (100 mL). The combined organic fractions were washes with water (4×75 mL), dried over potassium carbonate, filtered, and concentrated under reduced pressure to provide 46.1 g of ethyl 3-[(3-aminoquinolin-4-yl)amino]-2,2-dimethylpropanoate as a dark oil. Part E

1. customThe aqueous layer was separated
2. extractionextracted with dichloromethane (100 mL)
3. dry with materialdried over potassium carbonate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure