Issue 36, 2012

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

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

Supplementary files

Article information

Article type
Communication
Submitted
28 Jun 2012
Accepted
27 Jul 2012
First published
30 Jul 2012

Dalton Trans., 2012,41, 10934-10937

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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