Hexane → 9-(4'-(9H-carbazol-9-yl)biphenyl-4-yl)-3-(4-vinylphenyl)-9H-carbazole

Participants

Reaction Conditions

Reaction Steps

9-(4′-(9H-carbazol-9-yl)biphenyl-4-yl)-3-bromo-9H-carbazole (0.5 g, 0.88 mmol) and 4-vinyl boronic acid (0.14 g, 0.98 mmol) and Pd(dba)3 (0.097 g, 0.01 mmol), CsCO3 (0.289 g, 0.88 mmol) were dissolved in toluene (25 mL). Tri-t-butyl phosphine 10 wt % in hexane (0.053 g, 0.026 mmol) was added and the reaction mixture was stirred vigorously while refluxed at 85° C. for 24 h. The reaction mixture was cooled down to room temperature, diluted with toluene and filtered through a celite filter bed. The organic extract was evaporated to dryness and purified by silica column chromatography using dichloromethane and pet-ether (40-60° C.) to give slightly brownish colour powder as the product (0.3 g)

Provenance & Evidence