反应详情

温度

80 °C

To a solution of 1-bromo-2,3,4,5,6-pentafluorobenzene (50 g) in triethylamine (200 mL), 3-butyn-1-ol (15 g), triphenylphosphine (2.7 g), dichlorobistriphenylphosphinepalladium (3.6 g) and copper (I) iodide (1.9 g) were added, followed by stirring at 80° C. for 16 hours. The reaction mixture was cooled to room temperature, and tert-butyl methyl ether (500 mL) was added thereto, followed by stirring at 0° C. for 30 minutes. The reaction mixture was filtered through “Celite” (registered trademark), and the filtrate was concentrated. The resulting residue was purified by flash column chromatography (hexane:ethyl acetate=95:5→65:35) to give the title compound (43 g) having the following physical properties.

1. temperatureThe reaction mixture was cooled to room temperature
2. stirringby stirring at 0° C. for 30 minutes
3. filtrationThe reaction mixture was filtered through “Celite” (registered trademark)
4. concentrationthe filtrate was concentrated
5. customThe resulting residue was purified by flash column chromatography (hexane:ethyl acetate=95:5→65:35)