Potassium Phosphate, Tribasic → 1-(3-(3'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-3-yl)-9H-carbazol-9-yl)ethanone

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Reaction Steps

A mixture solution of 1-(3-(3-bromophenyl)-9H-carbazol-9-yl)ethanone (2.50 g, 6.86 mmol), 9-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-9H-carbazole (2.53 g, 6.86 mmol), Pd2(dba)3 (0.063 g, 0.069 mmol), (SPhos) (0.056 g, 0.137 mmol) and K3PO4 (4.74 g, 20.59 mmol) in toluene (180 mL) and water (5 mL) was refluxed under N2 overnight. After cooling to room temperature, the organic solution was isolated. Upon evaporation of the solvent, the residue was purified by column chromatography on silica gel with hexane/DCM (1/1 to 1/4, v/v) as eluent to yield 1-(3-(3′-(9H-carbazol-9-yl)-[1,1′-biphenyl]-3-yl)-9H-carbazol-9-yl)ethanone (3.2 g, 89%) as a white solid.

Provenance & Evidence