Used as a coupling reagent in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. It enables the formation of carbon-carbon bonds by reacting with aryl or vinyl halides under palladium catalysis. The presence of the trifluoroborate group enhances stability and handling compared to boronic acids, while the benzyloxy moiety serves as a protected form of a phenolic alcohol, useful in the synthesis of complex molecules such as natural products or pharmaceuticals. Its (E)-alkenyl structure allows for stereoselective construction of extended conjugated systems, making it valuable in the development of bioactive compounds and functional materials.