反应详情

温度

0 °C

To a solution of 6-bromo-1,8-naphthyridin-2(1H)-one (0.1 g, 0.444 mmol) in DMF (2 mL) was added sodium hydride (0.021 g, 0.889 mmol) at 0° C. The reaction was stirred at 0° C. for 30 min, then SEM-Cl (0.118 mL, 0.667 mmol) was added. The reaction was stirred at room temperature overnight, then diluted with ammonium chloride solution, extracted with ethyl acetate, dried over Na2SO4, and concentrated. The crude product was purified by flash chromatography on silica gel using 20% ethyl acetate in petroleum ether to give 6-bromo-1-((2-(trimethylsilyl)ethoxy)methyl)-1,8-naphthyridin-2(1H)-one (0.12 g, 76%). 1HNMR 400 MHz (CDCl3): 0.034 (s, 9H), 0.95-0.99 (m, 2H), 3.73-3.77 (m, 2H), 5.92 (s, 2H), 6.75-6.77 (m, 1H), 7.56-7.58 (m, 1H), 7.96-7.98 (m, 1H), 8.63-8.64 (m, 1H).

1. stirringThe reaction was stirred at room temperature overnight
2. extractionextracted with ethyl acetate
3. dry with materialdried over Na2SO4
4. concentrationconcentrated
5. customThe crude product was purified by flash chromatography on silica gel using 20% ethyl acetate in petroleum ether