反应详情

温度

125 °C

To a solution of methyl 5-bromo-6-oxo-1,6-dihydropyridine-3-carboxylate (0.5 g, 2.16 mmol) in DMF (8.1 mL) and water (2.7 mL) were added (4-fluorophenyl)boronic acid (0.38 g, 2.69 mmol), palladium(II)acetate (36.3 mg, 0.16 mmol), tris(3-sulfonatophenyl)phosphine hydrate sodium salt (0.31 g, 0.49 mmol) and diisopropylamine (1.54 mL, 10.77 mmol). The mixture was heated in the microwave reactor for 15 min at 125° C. The mixture was filtered and water was added to the filtrate. The mixture was extracted with ethyl acetate (3×). The combined organic extracts were washed with water (3×), brine, dried over sodium sulfate, filtered and concentrated. Purification by silica gel chromatography (100% dichloromethane→70% dichloromethane/ethyl acetate) gave the title compound (0.35 g). MS 248.1 (M+1).

1. filtrationThe mixture was filtered
2. additionwater was added to the filtrate
3. extractionThe mixture was extracted with ethyl acetate (3×)
4. washThe combined organic extracts were washed with water (3×), brine
5. dry with materialdried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated
8. customPurification by silica gel chromatography (100% dichloromethane→70% dichloromethane/ethyl acetate)