Potassium Carbonate → HCID 86685020, compound

Participants

Reaction Conditions

Reaction Steps

12,12-Dimethyl-10,12-dihydroindeno[2,1-b]carbazole synthesized in Example 1 (5.5 g), 2-bromo-9,9-dimethyl-9H-fluorene (6.4 g), sodium bisulfite (0.3 g), a copper powder (0.1 g), 3,5-di(tert-butyl)salicylic acid (0.5 g), potassium carbonate (4.0 g), and dodecylbenzene (5 ml) were added to a nitrogen-substituted reaction vessel, heated, and stirred at 180° C. for 29 hours. The mixture was cooled to 100° C., and insoluble matter was removed by filtration after adding toluene (80 ml), and a filtrate was concentrated. Crystallization using n-hexane (20 ml) was performed to obtain an ocher powder of 12,12-dimethyl-10-(9,9-dimethyl-9H-fluorene-2-yl)-10,12-dihydroindeno[2,1-b]carbazole (7.4 g; yield 80.0%)

Provenance & Evidence