反应详情

To a mixture of methyl 2-fluoro-4-methylbenzoate (0.655 g; 3.89 mmol) in carbon tetrachloride (30 mL) was added N-bromosuccinimide (0.840 g; 4.67 mmol) and benzoyl peroxide (0.097 g; 0.390 mmol). The mixture was refluxed for 18 hours and the resulting suspension was concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (eluent 1 to 12% ethyl acetate in heptane) to give 0.676 g (70%) of methyl 4-(bromomethyl)-2-fluorobenzoate as a solid which was directly used in the next step.

1. temperatureThe mixture was refluxed for 18 hours
2. concentrationthe resulting suspension was concentrated under reduced pressure
3. customThe residue was purified by flash chromatography on silica gel (eluent 1 to 12% ethyl acetate in heptane)