We thank Nicolas Clement for advice and helpful discussions, Rob Jenkins for technical assistance, and Dr. David Nielsen for help with the preparation of the manuscript. We are grateful to the Engineering and Physical Sciences Research Council (EPSRC) for financial support.
Platinum-Mediated Oxidative Addition and Reductive Elimination of Imidazolium Salts at C4 and C5†
Article first published online: 22 JUL 2005
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 44, Issue 33, pages 5282–5284, August 19, 2005
How to Cite
Bacciu, D., Cavell, K. J., Fallis, I. A. and Ooi, L.-l. (2005), Platinum-Mediated Oxidative Addition and Reductive Elimination of Imidazolium Salts at C4 and C5. Angew. Chem. Int. Ed., 44: 5282–5284. doi: 10.1002/anie.200500884
- Issue published online: 15 AUG 2005
- Article first published online: 22 JUL 2005
- Manuscript Received: 9 MAR 2005
- ionic liquids;
- N-heterocyclic carbenes;
- oxidative addition;
- reductive elimination
Wrong way round: Imidazolium salts blocked at C2 undergo oxidative addition to a Pt0 center at C4/C5 (see scheme; nbe=norbornene, IMes=1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene). The resulting carbene ligands, which are bound the “wrong way” are susceptible, in common with their “normal” counterparts, to reductive elimination reactions to regenerate Pt0 complexes and imidazolium salts.