Used as a key intermediate in organic synthesis, particularly in cross-coupling reactions such as Suzuki, Stille, and Heck reactions, enabling the introduction of naphthyl groups into complex molecules. Its triflate group acts as an excellent leaving group, making it highly reactive toward nucleophiles and organometallic reagents. Commonly employed in the pharmaceutical and agrochemical industries for constructing biaryl systems and conjugated structures found in functional materials, including organic semiconductors and liquid crystals. Also utilized in the preparation of ligands for catalysis and in the development of fluorescent dyes due to the inherent photophysical properties of the naphthalene core.