“…Recently, a Sonogashira cross-coupling of alkyl iodides and terminal alkynes was established to construct a C(sp)–C(sp 3 ) bond via photoexcited Cu(I) complexes, which obviated the need for palladium or nickel catalysts . Encouraged by this photoinduced copper-catalyzed strategy, other different alkyl radical precursors, including redox-active esters and cycloketoximes, have also been used to couple terminal alkynes to realize the construction of C(sp)–C(sp 3 ) bonds under the catalysis of excited copper complexes, thereby furnishing a variety of alkylated alkynes. − Our group recently reported a two-step, one-pot synthetic route for monofluoroalkyl triflate, which served as a versatile and efficient monofluoroalkylation reagent to prepare diverse aliphatic monofluorides . Therefore, we envision that monofluoroalkyl triflate could be used as a modular synthetic scaffold to synthesize propargyl fluoride via a C(sp)–C(sp 3 ) coupling strategy instead of the known C–F bond-forming methods (Scheme b).…”