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Activation of olefin metathesis complexes containing unsymmetrical unsaturated N-heterocyclic carbenes by copper and gold transmetalation

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Abstract

The activation of ruthenium-indenylidene complexes containing two unsymmetrical unsaturated N-heterocyclic carbenes (u2-NHCs) by a transmetalation process is reported. The use of copper(I) or gold(I) chlorides promotes the rapid trapping of one NHC ligand, which releases the catalytically active Ru-species. Impressive initiation rates with full-conversions are observed within one minute. This practical protocol demonstrates excellent catalytic performances in various ring-closing metathesis (RCM) and self-metathesis (SM) reactions.

Graphical abstract: Activation of olefin metathesis complexes containing unsymmetrical unsaturated N-heterocyclic carbenes by copper and gold transmetalation

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The article was received on 25 Jul 2019, accepted on 02 Sep 2019 and first published on 02 Sep 2019


Article type: Communication
DOI: 10.1039/C9CC05776E
Chem. Commun., 2019, Advance Article

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    Activation of olefin metathesis complexes containing unsymmetrical unsaturated N-heterocyclic carbenes by copper and gold transmetalation

    F. Kamal, S. Colombel-Rouen, A. Dumas, J. Guégan, T. Roisnel, V. Dorcet, O. Baslé, M. Rouen and M. Mauduit, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC05776E

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