Used as a reagent in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in organic synthesis. Its trifluoroborate group provides stability and controlled reactivity, making it suitable for constructing complex molecules in pharmaceutical and agrochemical research. The (E)-but-2-en-1-yl moiety allows for the introduction of an alkenyl chain with defined stereochemistry, useful in the synthesis of bioactive compounds. Soluble in aqueous and organic solvent mixtures, it supports mild reaction conditions and broad functional group tolerance.