Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research. Its structure allows for further functionalization, making it valuable in constructing nitrogen-containing heterocycles. Commonly employed in the development of protease inhibitors and other therapeutic agents where dihydroisoquinoline scaffolds are relevant. The trifluoromethylsulfonyloxy group acts as a good leaving group, facilitating cross-coupling reactions and nucleophilic substitutions. Also utilized in agrochemical research for designing novel active ingredients due to its reactivity and stability profile.