Room Temperature Activation of Aromatic CH Bonds by Non-Classical Ruthenium Hydride Complexes Containing Carbene Ligands
✍ Scribed by Daniela Giunta; Markus Hölscher; Christian W. Lehmann; Richard Mynott; Cornelia Wirtz; Walter Leitner
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 207 KB
- Volume
- 345
- Category
- Article
- ISSN
- 1615-4150
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✦ Synopsis
Abstract
Non‐classical ruthenium hydride complexes are promising lead structures for the CH bond activation and functionalization of aromatic compounds. In the present paper, the preparation and crystallographic characterisation of the first organometallic complexes bearing dihydrogen ligands and N‐heterocyclic carbene ligands in the same coordination sphere are described. The mixed phosphine/carbene complex [(IMes)Ru(H)~2~(H~2~)~2~(PCy~3~)] (IMes=1,3‐dimesityl‐1,3‐dihydro‐2__H__‐imidazol‐2‐ylidene; 3a) shows a unique reactivity pattern in the inter‐ and intramolecular activation of CH bonds. In particular, complex 3a effects a rapid and remarkably selective intermolecular activation of sp^2^ CH bonds in simple aromatic compounds at room temperature.