反应详情

温度

110 °C

To N,N-dimethylacetamide 2.5 mL solution of tert-butyl 4-bromo-2-(4-fluoroanilino)benzoate 0.10 g were added 4-hydroxyphenylboronic acid 75 mg, sodium carbonate 72 mg and tetrakis(triphenylphosphine)palladium(0) 3.2 mg, and it was stirred at 110° C. for 4 hours. After the reaction mixture was cooled to room temperature, insoluble matter was filtrated, and 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=4:1] to give tert-butyl 2-(4-fluoroanilino)-4-(4-hydroxyphenyl)benzoate.

1. temperatureAfter the reaction mixture was cooled to room temperature
2. filtrationinsoluble matter was filtrated
3. additionethyl acetate and 10% citric acid aqueous solution were added to it
4. customThe organic layer was separated
5. washafter sequential washing with 10% citric acid aqueous solution and saturated sodium chloride aqueous solution
6. customthe solvent was removed under reduced pressure