How is 9-Phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole (CAS: 618442-57-2) typically synthesized?

9-Phenyl-3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole is typically synthesized via a palladium-catalyzed reaction involving phenylboronic acid, 9H-carbazole, and 1,3,2-dioxaborolane. The synthesis proceeds through a Suzuki coupling reaction, which allows for the introduction of the dioxaborolyl groups. The reaction requires a suitable palladium catalyst and a base. The yield is typically around 70-80%, depending on the purity of reagents and reaction conditions.