A σ,π-Type Monocarborane Copper Acetylide for Regioselective 1,4-Disubstitued 1,2,3-Triazoles

A σ,π-bis(copper) actylide complex, (CB11H11-12-C≡C)Cu2(PiPr3)3 (2), enables the formation of regioselective 1,4-disubstituted 1,2,3-triazoles containing monocarborane anion [CB11H12]- via CuAAC with organic azides under mild conditions. This mothod achieves 1,2,3-triazolylated monocarboranes...