Ru complexes of Hoveyda-Grubbs type immobilized on lamellar zeolites: activity in olefin metathesis reactions

Hoveyda-Grubbs type catalysts with cationic tags on NHC ligands were linker-free immobilized on the surface of lamellar zeolitic supports (MCM-22, MCM-56, MCM-36) and on mesoporous molecular sieves SBA-15. The activity of prepared hybrid catalysts was tested in olefin metathesis reactions: the activ...

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Veröffentlicht in:	Beilstein journal of organic chemistry 2015-11, Vol.11 (1), p.2087-2096
Hauptverfasser:	Balcar, Hynek, Žilková, Naděžda, Kubů, Martin, Mazur, Michal, Bastl, Zdeněk, Čejka, Jiří
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Full Research Paper Hoveyda–Grubbs type catalyst hybrid catalysts lamellar zeolites non-covalent immobilization olefin metathesis
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Zusammenfassung:	Hoveyda-Grubbs type catalysts with cationic tags on NHC ligands were linker-free immobilized on the surface of lamellar zeolitic supports (MCM-22, MCM-56, MCM-36) and on mesoporous molecular sieves SBA-15. The activity of prepared hybrid catalysts was tested in olefin metathesis reactions: the activity in ring-closing metathesis of citronellene and N,N-diallyltrifluoroacetamide decreased in the order of support MCM-22 ≈ MCM-56 > SBA-15 > MCM-36; the hybrid catalyst based on SBA-15 was found the most active in self-metathesis of methyl oleate. All catalysts were reusable and exhibited low Ru leaching (
ISSN:	1860-5397 1860-5397
DOI:	10.3762/bjoc.11.225