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Issue 36, 2012
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Cyclometallation of arylimines and nitrogen-containing heterocycles via room-temperature C–H bond activation with arene ruthenium(II) acetate complexes

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Abstract

The reaction of [RuCl2(p-cymene)]2 with arylimines and 4 equiv. of KOAc in methanol at room temperature produces stable (N^C)-cyclometallated ruthenium(II) complexes via C–H bond activation/deprotonation. This method can be applied also to nitrogen-containing molecules: N-phenylpyrazole, 2-phenyl-2-oxazoline and benzo[h]quinoline. N-Phenyl-pyrazole, [RuCl2(p-cymene)]2 and diphenylacetylene directly lead to alkyne insertion into the metallacycle C–Ru bond.

Graphical abstract: Cyclometallation of arylimines and nitrogen-containing heterocycles via room-temperature C–H bond activation with arene ruthenium(ii) acetate complexes

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Publication details

The article was received on 28 Jun 2012, accepted on 27 Jul 2012 and first published on 30 Jul 2012


Article type: Communication
DOI: 10.1039/C2DT31401K
Citation: Dalton Trans., 2012,41, 10934-10937
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    Cyclometallation of arylimines and nitrogen-containing heterocycles via room-temperature C–H bond activation with arene ruthenium(II) acetate complexes

    B. Li, T. Roisnel, C. Darcel and P. H. Dixneuf, Dalton Trans., 2012, 41, 10934
    DOI: 10.1039/C2DT31401K

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