反应详情

温度

100 °C

Under an argon atmosphere, to a solution of methyl 6-chloro-5-isobutoxynicotinate (1.84 g) in toluene (25 mL) were added 2-fluoro-5-methoxyphenylboronic acid (2.21 g), tris(dibenzylideneacetone)dipalladium(0) (318 mg), 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (570 mg) and 2.0 M aqueous sodium carbonate solution (13.0 mL), and the mixture was stirred at 100° C. for 1 hr. The reaction mixture was filtered through celite, and water was added at room temperature. The reaction mixture was extracted with ethyl acetate, and the extract was washed with water and saturated brine. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (1.82 g) as a yellow oil.

1. filtrationThe reaction mixture was filtered through celite, and water
2. additionwas added at room temperature
3. extractionThe reaction mixture was extracted with ethyl acetate
4. washthe extract was washed with water and saturated brine
5. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
6. customthe solvent was evaporated under reduced pressure
7. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)