Water → 2-Bromo-6-methylanisole

関与物質

反応手順

To a solution of 2-bromo-6-methylphenol (34.6 g, 0.18 mol) in THF (300 mL), NaH (9.6 g, 0.24 mol, 60%) was added in several portions. After the mixture was stirred for 1 h, Me2SO4 (28.0 g, 0.22 mol) was added dropwise, then the mixture was stirred over night. H2O (50 mL) was added, and the solvent was removed under reduced pressure. Then the residue was dissolved in Et2O (250 mL), and was washed with NaOH (5%, 100 mL), brine (100 mL), and dried with Na2SO4. After removing the solvent, 35.3 g of the crude product was obtained. (Yield: 95%). 1H NMR (400 MHz, CDCl3) δ 2.33 (s, 3 H), 3.81 (s, 3 H), 6.88 (t, J=8.0 Hz, 1H), 7.10 (d, J=8.0 Hz, 1 H), 7.30 (d, J=7.6 Hz, 1 H).

情報源と証拠