Ethanol → (Biphenyl-4-yl)-[4-(9,9-dimethyl-7,10-diphenylacridan-2-yl)phenyl]-phenylamine

Participants

Reaction Conditions

Reaction Steps

2-Bromo-9,9-dimethyl-7,10-diphenylacridan (3.2 g), (biphenyl-4-yl)-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaboran-2-yl)phenyl]-phenylamine (3.6 g), toluene (40 ml), ethanol (10 ml), and a 2M potassium carbonate aqueous solution (11 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 72° C. for 7 hours. The mixture was allowed to cool to a room temperature, and methanol (50 ml) was added. A precipitated solid was collected by filtration and washed with water to obtain a red brown crude product. The crude product was dissolved by adding toluene (100 ml) and subjected to adsorptive purification twice using silica gel (3.7 g). The product was then crystallized with toluene/methanol to obtain a white powder of (biphenyl-4-yl)-[4-(9,9-dimethyl-7,10-diphenylacridan-2-yl)phenyl]-phenylamine (3.42 g; yield 68%).

Provenance & Evidence