反应详情

温度

85 °C

To a solution of methyl 2-amino-5-bromobenzoate (2.0 g, 8.7 mmol) in dioxane (40 mL) were added phenylboronic acid (1.91 g, 15.7 mmol), potassium phosphate (4.08 g, 19.1 mmol) and tetrakis(triphenylphosphine)palladium (0.26 g, 0.22 mmol) under nitrogen. The mixture was heated at 85° C. for 20 h, then cooled to 0-5° C. Aqueous ammonium chloride was added and the mixture was extracted, washed with brine, dried (Na2SO4) and concentrated to dryness. Purification by chromatography gave 1.45 g of methyl 2-amino-5-phenylbenzoate.

1. temperaturecooled to 0-5° C
2. extractionthe mixture was extracted
3. washwashed with brine
4. dry with materialdried (Na2SO4)
5. concentrationconcentrated to dryness
6. customPurification by chromatography