Cycloalkyl-based unsymmetrical unsaturated (U2)-NHC ligands: Flexibility and dissymmetry in ruthenium-catalysed olefin metathesis
Toupet, Loïc J.
KAUST DepartmentKAUST Catalysis Center (KCC)
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
Permanent link to this recordhttp://hdl.handle.net/10754/563192
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AbstractAir-stable Ru-indenylidene and Hoveyda-type complexes bearing new unsymmetrical unsaturated N-heterocyclic carbene (U2-NHC) ligands combining a mesityl unit and a flexible cycloalkyl moiety as N-substituents were synthesised. Structural features, chemical stabilities and catalytic profiles in olefin metathesis of this new library of cycloalkyl-based U2-NHC Ru complexes were studied and compared with their unsymmetrical saturated NHC-Ru homologues as well as a set of commercially available Ru-catalysts bearing either symmetrical SIMes or IMes NHC ligands. © 2014 the Partner Organisations.
SponsorsThis work was financed by the European Community through the seventh framework program (CP-FP 211468-2 EUMET, grant to MR, LF and EB). MM thanks the Agence Nationale de la Recherche (grant ANR-12-CD2I-0002 CFLOW-OM), Rennes Metropole and the Region-Bretagne for their financial support concerning the development of Ru-based complexes. Dr O. Basle and C. Crevisy are gratefully acknowledged for their helpful discussion.
PublisherRoyal Society of Chemistry (RSC)