American Chemical Society
ic2c02919_si_001.pdf (2.93 MB)

Activation of Alkynes by a Redox-Active Carboranyl Diphosphine and Formation of Boron-Containing Phosphacycles

Download (2.93 MB)
journal contribution
posted on 2022-11-09, 19:38 authored by Gayathri B. Gange, Amanda L. Humphries, Mark D. Smith, Dmitry V. Peryshkov
In this work, we report the reactivity of the carboranyl diphosphine, 1-PtBu2–2-PiPr2-C2B10H10, with terminal alkynes, resulting in the formation of boron-containing phosphacycles. The reported system combines the nucleophilic activation of electron-deficient terminal alkynes via electron-rich phosphine groups with the redox behavior of carborane clusters to promote a sequence of metal-free intramolecular B–H bond activation and cyclization, creating an alkenylphosphonium cycle fused with a reduced open nido-carborane cluster.