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Issue 1, 2014
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Palladium(II) complexes with planar chiral ferrocenyl phosphane–(benz)imidazol-2-ylidene ligands

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Abstract

We describe here the first examples of planar chiral ferrocenyl phosphane–benzimidazol-2-ylidene ligands and their coordination chemistry with palladium(II). All ligand precursors, namely enantiopure ferrocenyl phosphane–(benz)imidazolium salts, and all enantiopure palladium complexes have been fully characterised by 1H, 31P and 13C NMR, mass spectrometry and X-ray diffraction methods for seven examples. The potential of these very bulky bidentate ligands in catalysis was evaluated and compared to their imidazol-2-ylidene analogues. The influence of sterics was shown to be non-negligible as the bulkiest ligand gave the lowest activities in the asymmetric Suzuki–Miyaura reaction.

Graphical abstract: Palladium(ii) complexes with planar chiral ferrocenyl phosphane–(benz)imidazol-2-ylidene ligands

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Publication details

The article was received on 30 Jul 2013, accepted on 31 Oct 2013 and first published on 19 Nov 2013


Article type: Paper
DOI: 10.1039/C3NJ00863K
Citation: New J. Chem., 2014,38, 338-347
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    Palladium(II) complexes with planar chiral ferrocenyl phosphane–(benz)imidazol-2-ylidene ligands

    P. Loxq, N. Debono, S. Gülcemal, J. Daran, E. Manoury, R. Poli, B. Çetinkaya and A. Labande, New J. Chem., 2014, 38, 338
    DOI: 10.1039/C3NJ00863K

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