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Issue 25, 2016
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Well-defined silica-supported zirconium–imido complexes mediated heterogeneous imine metathesis

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Abstract

Upon prolonged thermal exposure under vacuum, a well-defined single-site surface species [([triple bond, length as m-dash]Si–O–)Zr(NEt2)3] (1) evolves into an ethylimido complex [([triple bond, length as m-dash]Si–O–)Zr([double bond, length as m-dash]NEt)NEt2] (2). Reactions of 2 with an imine substrate result in imido/imine ([double bond, length as m-dash]NRi, R: Et, Ph) exchange (metathesis) with the formation of [([triple bond, length as m-dash]Si–O–)Zr([double bond, length as m-dash]NPh)NEt2] (3). Compounds 2 and 3 effectively catalyze imine/imine cross-metathesis and are thus considered as the first heterogeneous catalysts active for imine metathesis.

Graphical abstract: Well-defined silica-supported zirconium–imido complexes mediated heterogeneous imine metathesis

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Publication details

The article was received on 18 Jan 2016, accepted on 14 Feb 2016 and first published on 15 Feb 2016


Article type: Communication
DOI: 10.1039/C6CC00471G
Citation: Chem. Commun., 2016,52, 4617-4620
  • Open access: Creative Commons BY-NC license
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    Well-defined silica-supported zirconium–imido complexes mediated heterogeneous imine metathesis

    B. Hamzaoui, J. D. A. Pelletier, E. Abou-Hamad and J. Basset, Chem. Commun., 2016, 52, 4617
    DOI: 10.1039/C6CC00471G

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