Widely used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions, this compound serves as a key building block for constructing conjugated polymers and small molecules in optoelectronic materials. Its dual boronic ester functionality allows for efficient and selective coupling with aryl halides, making it valuable in the development of organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs). It is especially useful in creating fluorene-based copolymers that exhibit high thermal stability and good charge transport properties. Additionally, it supports the synthesis of ladder-type structures and dendrimers for advanced material applications.