反应详情

A solution of 3-amino-4-chloroquinoline (20.0 g, 112 mmol) in dichloromethane (125 mL) was cooled to 0° C. Triethylamine (47.0 mL, 0.336 mol) was added followed by a solution of acetyl chloride (16.0 mL, 0.224 mol) in dichloromethane (45 mL), which was added dropwise. The reaction was stirred overnight at room temperature. An analysis by LC/MS indicated the presence of starting material, and additional acetyl chloride (4 mL, 56 mmol) was added. The reaction was stirred for four hours at room temperature. Saturated aqueous sodium bicarbonate (100 mL) was added, and the mixture was stirred for three days. The organic layer was separated and washed with saturated aqueous sodium bicarbonate (2×50 mL), dried over potassium carbonate, filtered, and concentrated under reduced pressure to provide N-(4-chloroquinolin-3-yl)acetamide as a dark red solid.

1. additionwas added dropwise
2. additionwas added
3. stirringThe reaction was stirred for four hours at room temperature
4. stirringthe mixture was stirred for three days
5. customThe organic layer was separated
6. washwashed with saturated aqueous sodium bicarbonate (2×50 mL)
7. dry with materialdried over potassium carbonate
8. filtrationfiltered
9. concentrationconcentrated under reduced pressure