反应详情

NBS (5.45 g, 30.62 mmol) and benzoyl peroxide (75% aq, 200 mg, 0.85 mmol) were added to a solution of 4-iodo-2-nitrotoluene (4.63 g, 17.60 mmol) in CCl4 (60 mL). The mixture was heated to reflux overnight, then cooled to room temperature, concentrated in vacuo, and purified by column chromatography to yield 1-bromomethyl-4-iodo-2-nitrobenzene (2.71 g, 45%). 1H NMR (400 MHz, CDCl3): δ 8.35 (d, 1H, J=1.8 Hz, Ph-H), 7.93 (dd, 1H, J=1.8 and 8.1 Hz, Ph-H), 7.30 (d, 1H, J=8.1 Hz, Ph-H), 4.76 (s, 2H, PhCH2).

1. temperatureThe mixture was heated
2. temperatureto reflux overnight
3. concentrationconcentrated in vacuo
4. custompurified by column chromatography