Used primarily as a building block in organic synthesis, especially in Suzuki-Miyaura cross-coupling reactions. Its boronate ester group enables efficient carbon-carbon bond formation, making it valuable in the development of pharmaceuticals and agrochemicals. The cyclobutane core with an exocyclic double bond offers structural rigidity and three-dimensional complexity, which is advantageous in drug design for improving metabolic stability and target selectivity. It is also employed in materials science for constructing conjugated systems and functionalized small molecules.