反应详情

温度

90 °C

A mixture of (4-fluorophenyl)methyl 5-bromo-2-{[(4-fluorophenyl)methyl]oxy}benzoate (420 mg, 0.97 mmol), 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (208 mg, 1.00 mmol), tetrakis(triphenylphosphine)palladium(0) (34.7 mg, 0.03 mmol) and K2CO3 (414 mg, 3 mmol) in 1,4-dioxane (10 ml) and water (2 ml) was stirred under nitrogen and heated at 90° C. for 16 hours. The solvent was removed, and the residue was dissolved in ethyl acetate (100 ml) and filtered. The filtrate was washed with water (50 ml) and brine (50 ml), dried over Na2SO4, and concentrated to give the crude product. The crude product was purified by a silica gel column (eluting with dichloromethane/methanol=50:1) yield the title compound as a white solid. 360 mg.

1. customThe solvent was removed
2. dissolutionthe residue was dissolved in ethyl acetate (100 ml)
3. filtrationfiltered
4. washThe filtrate was washed with water (50 ml) and brine (50 ml)
5. dry with materialdried over Na2SO4
6. concentrationconcentrated
7. customto give the crude product
8. customThe crude product was purified by a silica gel column (eluting with dichloromethane/methanol=50:1)