Ethanol → HCID 85975625, compound

Participants

Reaction Conditions

Reaction Steps

Firstly, 8.12 g (25.0 mmol) of 3,6-dibromo-carbazole and 9.46 g (55.0 mmol) of 1-Naphthylboronic acid are dissolved in 100 ml of toluene, and then an aqueous solution of 30 ml of 2M sodium carbonate (Na2CO3) and 30.0 ml of ethanol is added to the above-mentioned solution. After the mixed solution is degassed with nitrogen for 30 minutes, 577 mg (0.5 mmol) of tetrakis(triphenylphosphine)palladium (Pd(PPh3)4) is added to the solution under nitrogen and then the solution is heated to 90° C. After reacting for 8 hours, the solution is cooled to room temperature, added and stirred with methylene chloride and deionized water. Then, the extracted organic layer is dried with anhydrous magnesium sulfate (MgSO4), and the solvent is removed by reducing the pressure. The remains are passed through the silica gel column with petroleum ether:methylene chloride (V:V)=2:1 to obtain a white solid of 9.3 g (22.2 mmol, 89% yield) of 3,6-bis(1-naphthyl) carbazole. The specific reaction is shown in the reaction formula (1-A):

Provenance & Evidence