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Issue 10, 2002
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Bis-carbene complexes from oxidative addition of imidazolium C–H bonds to palladium(0)

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Abstract

Oxidative addition of the C–H bond at the 2-position of N-(2-pyridyl)imidazolium salts takes place to palladium(0) to lead to unexpected final products containing two carbenes. The formation of either cis or trans bis-carbene complexes, both identified by X-ray crystallography and spectroscopy, apparently is a consequence of the substitution pattern of the imidazolium moiety. A mechanism is suggested based on recent theoretical studies.

Graphical abstract: Bis-carbene complexes from oxidative addition of imidazolium C–H bonds to palladium(0)

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Publication details

The article was received on 30 Nov 2001, accepted on 11 Mar 2002 and first published on 15 Apr 2002


Article type: Paper
DOI: 10.1039/B110964B
Citation: J. Chem. Soc., Dalton Trans., 2002,0, 2163-2167
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    Bis-carbene complexes from oxidative addition of imidazolium C–H bonds to palladium(0)

    S. Gründemann, M. Albrecht, A. Kovacevic, J. W. Faller and R. H. Crabtree, J. Chem. Soc., Dalton Trans., 2002, 0, 2163
    DOI: 10.1039/B110964B

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