反应详情

Benz[cd]indole-2(1H)-one (5.1 g, 30 mmol) was dissolved in anhydrous N,N-dimethylformamide (100 ml). Thereto was added sodium hydride (60% content, 1.2 g, 30 mmol), and the resulting solution was stirred for 20 minutes in an ice bath. The reaction solution was mixed with methyl iodide (2.6 ml, 42 mmol) and again stirred at a room temperature for 1 hour. The reaction solution was mixed with ethyl acetate (300 ml) and water (200 ml), and the reaction product was extracted with ethyl acetate. The ethyl acetate layer was separated, washed with water and then dried with anhydrous sodium sulfate. By evaporating ethyl acetate under a reduced pressure, 4.7 g (26 mmol, 74% in yield) of the title compound was obtained as yellow crystals.

1. stirringagain stirred at a room temperature for 1 hour
2. extractionthe reaction product was extracted with ethyl acetate
3. customThe ethyl acetate layer was separated
4. washwashed with water
5. dry with materialdried with anhydrous sodium sulfate
6. customBy evaporating ethyl acetate