Widely used in organic synthesis, particularly in palladium-catalyzed cross-coupling reactions such as Suzuki-Miyaura coupling. It serves as a key building block for constructing conjugated organic materials, especially in the development of organic semiconductors and optoelectronic devices. Commonly employed in the synthesis of organic light-emitting diodes (OLEDs), where carbazole derivatives contribute to hole-transport properties and enhance device efficiency and stability. Also utilized in the preparation of organic photovoltaics (OPVs) and perovskite solar cells due to its ability to form stable, conjugated frameworks with tunable electronic properties. Its boron-containing group enables reliable and selective coupling, making it valuable in the fabrication of complex aromatic systems for advanced materials research.