A Bidentate NHC-Alkenyl Ruthenium(II) Complex via Vinyl C-H Bond Activation
Résumé
A bidentate NHC-alkenyl ruthenium(II) complex has been obtained on deprotonation of imidazolium salts with a N-CH 2 CH 2 X branch (X) OMe, Cl) followed by reaction with [RuCl 2 (p-cymene)] 2. Low-temperature NMR studies and intermediate trapping with BH 3 indicate the formation of a CH 2 d CH-NHC carbene followed by the intramolecular actiVation of a Vinyl sp 2 C-H bond on coordination to a ruthenium(II) center.
Domaines
Chimie de coordination
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