Short-RInChIKey=SA-FUHFF-UHFFFADPSC-OGCOPTUVYR-UHFFFADPSC-NUHFF-NUHFF-NUHFF-ZZZ

To a solution of 3,6-diphenyl-9H-carbazole (100 mg, 313 μmol, 1.00 equiv) in acetic acid (10 mL) was added molecular bromine (210 mg, 67.8 μL, 1.31 mmol, 4.20 equiv). The reaction was stirred at 25 °C for 45 minutes. The solvent was removed under reduced pressure. The crude product was dissolved in ethyl acetate (50 mL) and the organic layer was washed with 1 M NaOH (2 x 30 mL) ,sat. NaHCO3 (30 mL) and dried over Na2SO4. The solvent was removed under reduced pressure. No further purification was necessary. 1,8-Dibromo-3,6-diphenyl-9H-carbazole was isolated as a colorless solid in 94% yield (141 mg, 0.296 mmol).