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

Bilel Hamzaoui, Jeremie Pelletier, Edy Abou-Hamad, Jean-Marie Basset

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Upon prolonged thermal exposure under vacuum, a well-defined single-site surface species [(≡Si-O-)Zr(NEt2)3] (1) evolves into an ethylimido complex [(≡Si-O-)Zr(=NEt)NEt2] (2). Reactions of 2 with an imine substrate result in imido/imine (=NRi, R: Et, Ph) exchange (metathesis) with the formation of [(≡Si-O-)Zr(=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. © The Royal Society of Chemistry 2016.
Original languageEnglish (US)
Pages (from-to)4617-4620
Number of pages4
JournalChem. Commun.
Issue number25
StatePublished - 2016

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