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Issue 9, 2010
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An intermolecular C–C coupling reaction of iridium complexes

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Abstract

Novel imidazo[1,5-b]pyridazine-substituted (pyridyl-methyl)amines were synthesized via the nucleophilic ring transformation of oxadiazolium halides and (aminomethyl)pyridines, followed by a cyclocondensation reaction with 1,3-diketones. After deprotonation, these monoanionic amido-pincer ligands are suitable for the stabilization of mononuclear iridium complexes. For 2-(pyridyl-methyl)-amine-derived complexes, we observed the formation of dimers via an intermolecular C–C coupling reaction, whilst the 3-(pyridyl-methyl)amine-derived complex did not react. We propose that enamine tautomerization plays an important role in the C–C coupling reaction.

Graphical abstract: An intermolecular C–C coupling reaction of iridium complexes

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Publication details

The article was received on 26 Feb 2010, accepted on 31 Mar 2010 and first published on 18 May 2010


Article type: Paper
DOI: 10.1039/C0NJ00158A
Citation: New J. Chem., 2010,34, 1954-1960
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    An intermolecular C–C coupling reaction of iridium complexes

    K. Kutlescha, T. Irrgang and R. Kempe, New J. Chem., 2010, 34, 1954
    DOI: 10.1039/C0NJ00158A

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