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Room Temperature Activation of Aromatic CH Bonds by Non‐Classical Ruthenium Hydride Complexes Containing Carbene Ligands
Author(s) -
Giunta Daniela,
Hölscher Markus,
Lehmann Christian W.,
Mynott Richard,
Wirtz Cornelia,
Leitner Walter
Publication year - 2003
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200303091
Subject(s) - chemistry , carbene , imes , intramolecular force , ruthenium , phosphine , hydride , reactivity (psychology) , medicinal chemistry , reductive elimination , photochemistry , stereochemistry , organic chemistry , catalysis , metal , medicine , alternative medicine , pathology
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.