反应详情

温度

110 °C

To N,N-dimethylacetamide 2.0 mL solution of tert-butyl 2-(4-fluoroanilino)-4-vinylbenzoate 0.10 g were added 2-iodoanisole 0.046 mL, tributylamine 0.15 mL, palladium acetate 4.0 mg and tri-tert-butylphosphine tetrafluoroborate 3.0 mg at room temperature, and it was stirred under nitrogen atmosphere at 110° C. for 1 hour and 30 minutes. After the reaction mixture was cooled to room temperature, ethyl acetate and 10% citric acid aqueous solution were added to it. The organic layer was separated and collected,dried over anhydrous magnesium sulfate after sequential washing with 10% citric acid aqueous solution and saturated sodium chloride aqueous solution, and the solvent was removed under reduced pressure. The obtained residue was refined by silica gel column chromatography [Trikonex company, Flash Tube 2008, eluent; hexane:ethyl acetate=20:1] to give tert-butyl 2-(4-fluoroanilino)-4-((E)-2-(2-methoxyphenyl)vinyl)benzoate.

1. temperatureAfter the reaction mixture was cooled to room temperature
2. customThe organic layer was separated
3. washafter sequential washing with 10% citric acid aqueous solution and saturated sodium chloride aqueous solution
4. customthe solvent was removed under reduced pressure