Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases. Commonly applied in alkylation, esterification, and condensation reactions due to its ability to enhance reaction rates and selectivity. Also serves as a reagent in the preparation of pharmaceuticals and fine chemicals, where its trifluoroacetate anion contributes to solubility and stability under acidic conditions. Effective in peptide synthesis and protecting group chemistry, especially when mild acidic conditions are required.