Sodium Carbonate → 9-(4'-Bromobiphenyl-4-yl)-10-phenylanthracene

Participants

Reaction Steps

Into a 100 mL three-neck flask were put 2.8 g (7.2 mmol) of 9-iodo-10-phenylanthracene and 1.5 g (7.2 mmol) of 4′-bromobiphenyl-4-boronic acid. The air in the flask was replaced with nitrogen. To the mixture were added 40 mL of toluene and 10 mL (2.0 mol/L) of an aqueous solution of sodium carbonate. This mixture was stirred to be degassed while the pressure was being reduced. After the degassing, 120 mg (0.10 mmol) of tetrakis(triphenylphosphine)palladium(0) was added to the mixture. This mixture was stirred at 90° C. for 4 hours. After the stirring, about 50 mL of toluene was added to this mixture. The mixture was subjected to suction filtration through alumina, celite (produced by Wako Pure Chemical Industries, Ltd., Catalog No. 531-16855), and Florisil (produced by Wako Pure Chemical Industries, Ltd., Catalog No. 540-00135). The solid obtained by condensation of the obtained filtrate was purified by high-performance liquid chromatography (a mobile phase: chloroform) to give a light yellow solid. The obtained solid was recrystallized with a mixed solution of chloroform and hexane to give 1.4 g of a light yellow powdered solid, which was the object of the synthesis, in a yield of 40%. A synthesis scheme of Step 1 is shown in (b-1) given below.

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