Used as a key intermediate in the synthesis of fluorinated organic compounds, particularly in pharmaceutical and agrochemical industries. Its α,β-unsaturated ester structure with a trifluoromethyl group enables Michael addition reactions and other conjugate additions, facilitating the construction of complex fluorinated molecules. The tert-butyl ester group offers stability during multi-step syntheses and can be easily deprotected under mild acidic conditions. It is especially valuable in medicinal chemistry for introducing fluorine-containing motifs that enhance metabolic stability, lipophilicity, and bioavailability of drug candidates.