Carbazole → 9-(3-Bromophenyl)-9H-carbazole

Participants

Reaction Steps

The 300 mL round bottom flask, equipped with magnetic stirrer and refluxed condenser, was charged with carbazole (7.1 g, 42.5 mmol), 3-iodobromobenzene (25.00 g, 88 mmol), Pd2(dba)3 (800 mg, 1 mol %), dppf (1′,1′-bis(diphenylphosphino)ferrocene (975 mg, 2 mol %), sodium t-buthoxide (6.3 g) and m-xylene (100 ml). The reaction mixture was heated to reflux and stirred under nitrogen atmosphere for 48 hours. Then reaction was cooled down to room temperature, filtered through silica plug and evaporated. The residue was subjected to column chromatography on silica gel, eluent gradient mixture hexane —hexane/ethyl acetate mixture 9:1, providing 7.00 g of 9-(3-bromo -phenyl) -9H-carbazole as white solid, structure was confirmed by NMR and GCMS spectroscopy.

Provenance & Evidence