Used in organic synthesis as a boronic ester coupling partner in Suzuki-Miyaura cross-coupling reactions to construct biaryl or heteroaryl frameworks. Its structure enables the formation of conjugated systems important in pharmaceuticals and agrochemicals. The benzo[d]oxazolone core provides a rigid, polar scaffold that can enhance binding affinity in bioactive molecules. Commonly applied in the development of fluorescent probes and optoelectronic materials due to its luminescent properties upon derivatization. Stable and compatible with a range of functional groups, making it suitable for late-stage functionalization in drug discovery.