Used as a key reagent in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in organic synthesis. Its boronic ester group is stable and compatible with various functional groups, making it ideal for constructing complex molecules in pharmaceuticals, agrochemicals, and advanced materials. The pinacol protecting group enhances shelf life and handling, while the (E)-alkenyl structure allows for stereoselective synthesis. Commonly employed in research and development of bioactive compounds and conjugated systems.