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Issue 10, 2016
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Dinuclear PdI complexes with bridging allyl and related ligands

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Abstract

There are many important synthetic methods that utilize palladium catalysts. In most of these reactions, the palladium species are proposed to exist exclusively in either the Pd0 or PdII oxidation states. However, in the last decade, dinuclear PdI complexes have repeatedly been isolated from reaction mixtures previously suggested to involve only species in the Pd0 and PdII oxidation states. As a consequence, in order to design improved catalysts there is considerable interest in understanding the chemistry of dinuclear PdI complexes. A significant proportion of the known dinuclear PdI complexes are supported by bridging allyl or related ligands such as cyclopentadienyl or indenyl ligands. This review provides a detailed account of the synthesis, electronic structure and stoichiometric reactivity of dinuclear PdI complexes with bridging allyl and related ligands. Additionally, it describes recent work where dinuclear PdI complexes with bridging allyl ligands have been detected in catalytic reactions, such as cross-coupling, and discusses the potential implications for catalysis.

Graphical abstract: Dinuclear PdI complexes with bridging allyl and related ligands

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Article information


Submitted
07 Jul 2015
First published
06 Apr 2016

Chem. Soc. Rev., 2016,45, 2871-2899
Article type
Review Article

Dinuclear PdI complexes with bridging allyl and related ligands

N. Hazari and D. P. Hruszkewycz, Chem. Soc. Rev., 2016, 45, 2871
DOI: 10.1039/C5CS00537J

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