Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions for the synthesis of biaryl compounds in pharmaceutical and agrochemical industries. Its boronate ester group enables efficient carbon-carbon bond formation under mild conditions. Commonly applied in the development of functional organic materials, including fluorescent probes and OLEDs, due to the oxazolone moiety’s photophysical properties. Also employed in medicinal chemistry for constructing heterocyclic scaffolds with potential biological activity.