Used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions, as a key intermediate for constructing conjugated systems in materials science. Commonly applied in the development of organic semiconductors, OLEDs (organic light-emitting diodes), and conjugated polymers for electronic devices. Its ethynyl and boronate ester functional groups enable efficient carbon-carbon bond formation, making it valuable in the synthesis of complex aromatic and π-conjugated structures. Also utilized in research for fabricating sensors and organic photovoltaics due to its ability to tune electronic properties.