Hydrogenation of Alkenes Catalyzed by a Non‐pincer Mn Complex
S. M. Wahidur Rahaman, Dilip K. Pandey, Orestes Rivada‐Wheelaghan, Abhishek Dubey, Robert R. Fayzullin, Julia R. Khusnutdinova
Abstract
Abstract Hydrogenation of substituted styrenes and unactivated aliphatic alkenes by molecular hydrogen has been achieved using a Mn catalyst with a non‐pincer, picolylphosphine ligand. This is the second reported example of alkene hydrogenation catalyzed by a Mn complex. Mechanistic studies showed that a Mn hydride formed by H 2 activation in the presence of a base is the catalytically active species. Based on experimental and DFT studies, H 2 splitting is proposed to occur via a metal‐ligand cooperative pathway involving deprotonation of the CH 2 arm of the ligand, leading to pyridine dearomatization.
Topics & Concepts
Pincer ligandPincer movementChemistryDeprotonationCatalysisAlkeneHydrideLigand (biochemistry)PyridineDehydrogenationMetalMedicinal chemistryPhotochemistryOrganic chemistryBiochemistryIonReceptorAsymmetric Hydrogenation and CatalysisNanomaterials for catalytic reactionsCarbon dioxide utilization in catalysis