Tetrahydrofuran → HCID 21889343, compound

Participants

Reaction Conditions

Reaction Steps

To a 1 L of three neck flask with nitrogen protected condenser were charged with 500 mL of anhydrous tetrahydrfuran (THF) containing 9.2 g (0.02 mol.) of 4,10-Diphenyl-dibenzo[def,mno]chrysene-6,12-dione. Then 20 mL of 1.0 M of boran etherate was added by syringe slowly to above solution. The reaction mixture was slowly warm to 70° C. while stirring until the reaction mixture change to a completely pale yellow solution and then another 5 mL of 0.1.0 M of boran etherate was added by syringe. The reaction was continued for another 1 hour at 70° C. The reaction mixture was cooled to room temperature and 15 mL of methanol was slowly added to quench the excess boran agent. After the bubbles were ceased, the solvents were removed with a rotary evaporator. The residue was added to 20 mL of ethanol and the precipitates were filtered and dried. The 6.4 g of pure 4,10-Diphenyl-dibenzo[def,mno]chrysene was obtained by nitrogen flow sublimation at 275˜285° C. under 2 torr vacuum. Yield is in 74.8%.

Provenance & Evidence