反应详情

温度

55 °C

P To a solution of 8-chloro-3-methylsulfanyl-imidazo[1,5-a]pyrazine (1.75 g, 0.00876 mol) in DMF (15 mL) was added N-iodosuccinimide (3.94 g, 0.0175 mol), the resulting mixture was stirred at 55° C. for 6 hrs. The mixture was diluted with EtOAc (200 mL), washed with sat. aq. NaHCO3 (40 mL), water (2×40 mL), brine (40 mL), and dried over anhydrous sodium sulfate. The crude material was purified by silica gel chromatography to give the title compound as a yellow solid, 2.68 g, 94% yield. 1H NMR (CDCl3, 400 MHz): δ 2.72 (s, 3H), 7.36 (d, J=4.8 Hz, 1H), 7.76 (d, J=4.8 Hz, 1H).

1. washwashed with sat. aq. NaHCO3 (40 mL), water (2×40 mL), brine (40 mL)
2. dry with materialdried over anhydrous sodium sulfate
3. customThe crude material was purified by silica gel chromatography