Used as a highly efficient arylating agent in organic synthesis, particularly in photoredox catalysis and radical reactions. It enables mild, metal-free arylation of various nucleophiles and heteroarenes under visible light or thermal conditions. Commonly applied in the synthesis of biaryl compounds, which are key structural motifs in pharmaceuticals, agrochemicals, and functional materials. Its triflate counterion enhances solubility and reactivity in polar solvents, making it suitable for late-stage functionalization in complex molecule assembly.