反应详情

温度

80 °C

The mixture of 1-bromo-4-(2-bromoethoxy)benzene (1.00 g, 3.57 mmol), pyrazole (0.360 g, 5.36 mmol) and cesium carbonate (1.75 g, 5.36 mmol) in acetonitrile (10 mL) was heated at 80° C. and stirred for 2 hours. The reaction mixture was filtered. The filtrate was concentrated in vacuo to give a white solid, which was purified by silica gel chromatography to give the title compound (1.0 g, 100%) as a white solid. 1H NMR (400 MHz, CDCl3) δ ppm 7.56 (d, 1H) 7.54 (d, 1H) 7.35 (d, 2H), 6.74 (d, 2H), 6.26 (m, 1H), 4.53 (t, 2H), 4.30 (t, 2H).

1. filtrationThe reaction mixture was filtered
2. concentrationThe filtrate was concentrated in vacuo
3. customto give a white solid, which
4. customwas purified by silica gel chromatography