反应详情

温度

95 °C

To a solution of methyl 3-bromo-4-methoxybenzoate (13 g, 53 mmol) in toluene (500 mL), methanol (65 mL), and water (106 mL) was added phenyl boronic acid (7.8 g, 63.6 mmol) and potassium carbonate (14.6 g, 106 mmol) and bubbled with argon for 6 min. Tetrakis(triphenylphosphine)palladium(0) (370 mg) was added and bubbled with argon for another 2 min. The reaction mixture was then heated to 95° C. for 20 h with stirring. After cooling to RT, the two phases were separated and the aqueous layer was extracted with ether, dried with magnesium sulfate, and concentrated. Purification by MPLC (5% ethyl acetate in hexanes) gave 12.2 g of the desired product as an off white solid.

1. custombubbled with argon for 6 min
2. additionTetrakis(triphenylphosphine)palladium(0) (370 mg) was added
3. custombubbled with argon for another 2 min
4. temperatureAfter cooling to RT
5. customthe two phases were separated
6. extractionthe aqueous layer was extracted with ether
7. dry with materialdried with magnesium sulfate
8. concentrationconcentrated
9. customPurification by MPLC (5% ethyl acetate in hexanes)