反应详情

To a solution of 4-(2-bromoethoxy)-3-fluorobenzoyl chloride (1.07 g, 3.80 mmol) and anhydrous AlCl3 (1.01 g, 7.60 mmol) in dry dichloromethane (18 mL) was added anisole (822 mg, 7.60 mmol) in 2 mL dichloromethane at 0° C. After stirring at rt for 6 h, the mixture was poured into 3 N HCl, and extracted with dichloromethane. The extract was washed with sat. NaHCO3 and brine, dried over Na2SO4, filtered, concentrated, and purified by column chromatography over silica gel (eluent: petroleum ether/ethyl acetate=10/1 to 5/1) to give 1.05 g (77%) of the subtitle compound as a white solid. 1H NMR (400 MHz, CDCl3) δ 7.79 (d, J=8.8 Hz, 2H), 7.58 (d, J=11.6 Hz, 1H), 7.55 (d, J=8.4 Hz, 1H), 7.03 (dd, J=8.0 Hz, 8.4 Hz, 1H), 6.98 (d, J=9.2 Hz, 2H), 4.44 (t, J=6.4 Hz, 2H), 3.90 (s, 3H), 3.70 (t, J=6.4 Hz, 2H).

1. extractionextracted with dichloromethane
2. washThe extract was washed with sat. NaHCO3 and brine
3. dry with materialdried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated
6. custompurified by column chromatography over silica gel (eluent: petroleum ether/ethyl acetate=10/1 to 5/1)