反应详情

5-Nitroquinoline (4 g, 30 mmol) was melted at 85° C., prior to addition of dimethyl sulfate (2.2 ml, 30 mmol), and the resulting mixture was stirred at this temperature for 1.5 hours. The yellow gel was dissolved in water (35 ml) and cooled to room temperature. A saturated aqueous solution of potassium iodide (7.63 g, 45.9 mmol) was added, and the resulting orange precipitate was filtered, washing the residue with chilled water. After drying under vacuum at 60° C., for 2 hours, the brick-red solid was used in the next step without purification.

1. filtrationthe resulting orange precipitate was filtered
2. washwashing the residue with chilled water
3. customAfter drying under vacuum at 60° C., for 2 hours
4. customthe brick-red solid was used in the next step without purification