Widely used in Suzuki-Miyaura cross-coupling reactions, this compound serves as a key building block for constructing biaryl and heteroaryl systems in pharmaceutical and agrochemical synthesis. Its boronate ester group enables efficient carbon-carbon bond formation under mild conditions, making it valuable in the development of complex organic molecules, particularly in drug discovery and materials science. The isoindolinone core also contributes to biological activity in some therapeutic candidates, enhancing its utility in medicinal chemistry.