反应详情

Benzoyl chloride (4.22 g, 30 mmol) was added dropwise with a syringe to a solution of 2-fluoro-5-methylphenol (3.784 g, 30 mmol) and triethylamine (5 mL) in dichloromethane (50 mL), The mixture was stirred for 18 h at room temperature and concentrated under reduced pressure. Diethyl ether (200 mL) and water (100 mL) were added, the organic layer was separated and extracted with 2N NaOH (2×30 mL) and brine (20 mL), dried over sodium sulphate and concentrated under reduced pressure to give a white solid. Yield: 6.601 g (96%). 1H-NMR (400 MHz, CDCl3) δ=2.36 (s, 3H, —CH3), 7.01-7.12 (m, 3H), 7.49-7.55 (m, 2H), 7.63-7.68 (m, 1H), 8.19-8.23 (m, 2H). LRMS (FAB+): 231.1 (100, [M+H]+).

1. concentrationconcentrated under reduced pressure
2. additionDiethyl ether (200 mL) and water (100 mL) were added
3. customthe organic layer was separated
4. extractionextracted with 2N NaOH (2×30 mL) and brine (20 mL)
5. dry with materialdried over sodium sulphate
6. concentrationconcentrated under reduced pressure
7. customto give a white solid