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Efficient and Selective Catalysis for Hydrogenation and Hydrosilation of Alkenes and Alkynes with PNP Complexes of Scandium and Yttrium

Abstract

Scandium and yttrium congeneric complexes, supported by a monoanionic PNP ligand, were studied as catalysts for alkene hydrogenation and hydrosilation, and alkyne semihydrogenation and semihydrosilation. The yttrium congener was found to be much more active in all cases, but this greater activity is accompanied by more rapid catalyst decomposition, and therefore higher total yields for some of the reactions with the scandium catalyst. Calculations indicate that the reactions may proceed via σ-bond metathesis of the alkyl complexes to form a metal hydride intermediates into which alkenes/alkynes insert.

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Publication details

The article was received on 16 Aug 2017, accepted on 11 Oct 2017 and first published on 11 Oct 2017


Article type: Communication
DOI: 10.1039/C7CC06417A
Citation: Chem. Commun., 2017, Accepted Manuscript
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    Efficient and Selective Catalysis for Hydrogenation and Hydrosilation of Alkenes and Alkynes with PNP Complexes of Scandium and Yttrium

    D. S. Levine, T. D. Tilley and R. Andersen, Chem. Commun., 2017, Accepted Manuscript , DOI: 10.1039/C7CC06417A

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