反应详情

温度

60 °C

To a solution of 2-methoxy-1,4-dipropylbenzene (2.0 g, 10.4 mmol) in acetonitrile (30 mL) at room temperature was added N-bromosuccinimide (1.85 g, 10.4 mmol) in three portions. The solution was stirred at 60° C. for 20 hr and then most of the solvent was removed in vacuo. Extracton in hexanes (2×100 mL) with 50% saturated brine (75 mL) and flash chromatography with silica gel (100% hexanes) provided the title compound as a colorless liquid (2.50 g, 89% yield): 1H NMR (300 MHz, CDCl3) δ 0.93 (t, 3H, J=7.5 Hz), 0.99 (t, 3H, J=7.6 Hz), 1.60 (m, 4H), 2.50 (t, 2H, J=7.7 Hz), 2.65 (t, 2H, J=7.8 Hz), 3.79 (s, 3H), 6.67 (s, 1H), 7.24 (s, 1H).

1. custommost of the solvent was removed in vacuo