反应详情

温度

80 °C

A mixture of 3-bromo-2-fluoro-4-iodo-benzaldehyde (1.3 g, 4.0 mmol), potassium carbonate (0.66 g, 4.7 mmol), and 2-methylpropane-2-thiol (0.53 mL, 4.7 mmol) in dry DMF (2 mL) was heated at 80° C. in a sealed tube for 16 h. The reaction mixture was cooled to RT, water was added, and the mixture was extracted with dichloromethane (2×30 mL). The combined organic fractions were washed with water (60 mL), dried over sodium sulfate, filtered, and concentrated. Purification of the residue by column chromatography (5% ethyl acetate:hexanes) afforded 1.0 g (64%) of the title compound. 1H NMR (300 MHz, CDCl3): δ 1.30 (s, 9H), 7.54 (d, J=8.1 Hz, 1H), 7.87 (d, J=8.1 Hz, 1H), 10.29 (s, 1H).

1. temperatureThe reaction mixture was cooled to RT
2. extractionthe mixture was extracted with dichloromethane (2×30 mL)
3. washThe combined organic fractions were washed with water (60 mL)
4. dry with materialdried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated
7. customPurification of the residue by column chromatography (5% ethyl acetate:hexanes)