Ethanol → 11-acetyl-3-[4-(1-phenyl-1H-benzo[d] imidazol-2-yl) phenyl]-11H-benzocarbazole

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Following the above procedure, Suzuki coupling of 6.7 g of 9-bromo-11-acetyl-11H-benzo[a]carbazole and 14.0 g of 4-(1-phenyl-1H-benzo [d]imidazol-2-yl) phenylboronic acid were stirred together in 30 ml of toluene. To this was added 0.02 g of tetrakis(triphenylphosphine)palladium, 6.9 g of potassium carbonate and 10 ml of aqueous ethanol were added and refluxed under nitrogen for 6 h. The reaction was quenched with water and the toluene layer was removed and passed through a celite column. The organic layers were combined and then evaporated in a rotary evaporator under vacuum to yield 9.5 g of 11-acetyl-3-[4-(1-phenyl-1H-benzo[d] imidazol-2-yl) phenyl]-11H-benzocarbazole as a white solid.

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