Used primarily as a hypervalent iodine reagent in organic synthesis, this compound enables efficient and selective alkyne transfer reactions. It is especially valuable in the generation of vinyl cations and in metal-free carbon–carbon bond-forming processes. Its stability and reactivity make it suitable for use in the synthesis of conjugated enynes and in cycloaddition reactions. It also serves as a versatile reagent in radical reactions and photoredox catalysis, allowing functionalization under mild conditions. Due to its ability to act as an electrophilic alkyne source, it is widely applied in the construction of complex molecular architectures found in natural products and pharmaceuticals.