1,4-Dioxane → HCID 57702763, compound

Participants

Reaction Steps

Into a flask, 1.50 g of 3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolanyl)-9-naphthalene-1-yl-carbazole, 1.32 g of 5-bromo-2,3′-bipyridine, 194 mg of Pd(PPh3)4, 2.40 g of tripotassium phosphate, 25 ml of 1,4-dioxane, and 5 ml of water were put, and the solution was stirred at reflux temperature for 10 hours under argon atmosphere. After heating, the reaction liquid was cooled to room temperature, and washed by a saturated sodium chloride aqueous solution. The organic layer was concentrated in an evaporator, and the concentrates were washed by methanol. After washing, the concentrates were purified by silica gel column chromatography, recrystallized in a chloroform/ethyl acetate mixed solvent, and thus 475 mg of 3,6-bis(2,3′-bipyridine-5-yl)-9-naphthalene-1-yl-carbazole was obtained.

Provenance & Evidence