反应详情

To a room temperature solution of 2-methyl-6-(trifluoromethyl)aniline (3.0 g, 17 mmol) in acetonitrile (85 mL) was added N-bromosuccinimide (3.0 g, 17 mmol) in small portions over 30 minutes. The reaction was allowed to stir for 1 hour. The reaction was poured into a water/brine mixture and was extracted with ethyl acetate (3×). The combined organics were dried over magnesium sulfate, filtered, and concentrated. Purification by flash column chromatography (0-40% ethyl acetate/heptanes) gave the title compound (4.13 g, 95%) as a brown oil. 1H NMR (400 MHz, CDCl3, δ): 7.42 (d, J=2.34 Hz, 1H), 7.31 (s, 1H), 2.17 (s, 3H).

1. extractionwas extracted with ethyl acetate (3×)
2. dry with materialThe combined organics were dried over magnesium sulfate
3. filtrationfiltered
4. concentrationconcentrated
5. customPurification by flash column chromatography (0-40% ethyl acetate/heptanes)