Used in organic synthesis as a stable and versatile reagent for introducing ethynyl groups into molecules. It is particularly valuable in cross-coupling reactions, such as Suzuki-Miyaura coupling, to form carbon-carbon bonds efficiently. The trifluoroborate moiety enhances stability and handling, making it a preferred choice for creating alkynes in complex organic compounds. It is also employed in the preparation of pharmaceuticals, agrochemicals, and advanced materials, where precise control over molecular structure is critical. Its compatibility with various reaction conditions and functional groups makes it a reliable tool in modern synthetic chemistry.