Used as a highly effective arylating agent in organic synthesis, particularly for transferring mesityl and phenyl groups under mild conditions. Commonly employed in transition-metal-free arylation reactions, enabling the formation of carbon-carbon and carbon-heteroatom bonds. Valuable in pharmaceutical research for constructing complex aromatic structures. Also utilized in radical chemistry, where it acts as a source of aryl radicals upon reduction or photolysis. Its triflate counterion enhances solubility and reactivity in polar solvents, making it suitable for a wide range of transformations including heterocycle functionalization and late-stage modification of bioactive molecules.