Used as a key building block in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions for constructing conjugated organic frameworks. It serves as a boronic ester reagent in the preparation of spiro-based conjugated polymers and small molecules for optoelectronic applications. Commonly employed in the development of organic semiconductors, light-emitting diodes (OLEDs), and organic photovoltaics (OPVs) due to its rigid spirocyclic backbone that enhances thermal stability and influences molecular packing. Its borylated structure allows for efficient carbon-carbon bond formation, enabling the synthesis of complex aromatic systems with tailored electronic properties.