反应详情

To a solution of methyl 2-fluoro-5-methylbenzoate (17.16 g, 102.1 mmol) in CCl4(250 mL) is added NBS (18.2 g, 102.1 mmol) and AIBN (0.83 g, 5.1 mmol), and the resulting solution is refluxed for 3 hours. After cooling, the mixture is filtered through celite, evaporated, and chromatographed (silica, 5 to 15% EtOAc/hexane) to yield methyl 5-bromomethyl-2-fluorobenzoate, as a white solid.

1. temperaturethe resulting solution is refluxed for 3 hours
2. temperatureAfter cooling
3. filtrationthe mixture is filtered through celite
4. customevaporated
5. customchromatographed (silica, 5 to 15% EtOAc/hexane)