反应详情

温度

73 °C

7-Bromo-12,12-dimethyl-10-phenyl-10,12-dihydroindeno[2,1-b]carbazole synthesized in Example 1 (2.0 g), 4-diphenylamino-phenylboronic acid (1.32 g), a toluene/ethanol (4/1, v/v) mixed solvent (15 ml), and a 2M potassium carbonate aqueous solution (3.4 ml) were added to a nitrogen-substituted reaction vessel and aerated with nitrogen gas for 30 min under ultrasonic irradiation. The mixture was heated after adding tetrakis(triphenylphosphine)palladium (0.26 g), and stirred at 73° C. for 5 hours. After the mixture was cooled to a room temperature, toluene (30 ml) and water (20 ml) were added to perform liquid separation in order to collect an organic layer. The organic layer was washed with saturated brine, dehydrated with anhydrous magnesium sulfate, and concentrated under reduced pressure to obtain a crude product. The crude product was purified by column chromatography (carrier: silica gel; eluent: toluene/n-hexane) to obtain a pale yellowish white powder of 12,12-dimethyl-10-phenyl-7-(4-diphenylamino-phenyl)-10,12-dihydroindeno[2,1-b]carbazole (1.6 g; yield 58.4%).

1. temperatureThe mixture was heated
2. temperatureAfter the mixture was cooled to a room temperature
3. customliquid separation in order
4. customto collect an organic layer
5. washThe organic layer was washed with saturated brine
6. concentrationconcentrated under reduced pressure
7. customto obtain a crude product
8. customThe crude product was purified by column chromatography (carrier: silica gel; eluent: toluene/n-hexane)