反应详情

温度

90 °C

A mixture of 2-bromo-3-methylbenzaldehyde (0.30 g, 1.51 mmol), tris(dibenzylidenacetone)dipalladium (0) (0.055 g, 0.060 mmol), 2-(dicyclohexylphosphino)biphenyl (0.032 g, 0.091 mmol), tripotassium phosphate (0.64 g, 3.0 mmol), 3-(methoxycarbonylphenyl)boronic acid (0.35 g, 1.96 mmol) and toluene (6 mL) was stirred under an argon atmosphere at 90° C. for 17 hrs. The reaction mixture was cooled, diluted with ethyl acetate, washed with water and saturated brine, dried (anhydrous sodium sulfate), and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane-hexane/ethyl acetate=4/1) to give the title compound (0.25 g, yield 65%) as a yellow oil.

1. temperatureThe reaction mixture was cooled
2. washwashed with water and saturated brine
3. dry with materialdried (anhydrous sodium sulfate)
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by silica gel column chromatography (hexane-hexane/ethyl acetate=4/1)