Cobalt-Hydride-Catalyzed Hydrosilylation of 3-Alkynes Accompanying π-Bond Migration
Yeong Bum Kim, Dongwook Kim, Shashikant U. Dighe, Sukbok Chang, Jung‐Woo Park
Abstract
We describe a protocol for cobalt-catalyzed hydrosilylation of 3-alkynes with accompanying π-bond migration. Mechanistic studies indicate that (i) cobalt(I)-hydride bearing a bulky bisphosphine ligand is the key intermediate and (ii) π-bond migration occurs prior to hydrosilylation. The cascade process selectively furnishes terminal branched allylsilanes under mild conditions.
Topics & Concepts
HydrosilylationCobaltCatalysisHydrideChemistryLigand (biochemistry)Polymer chemistryMedicinal chemistryCombinatorial chemistryOrganic chemistryMetalBiochemistryReceptorOrganoboron and organosilicon chemistryCatalytic C–H Functionalization MethodsAsymmetric Hydrogenation and Catalysis