Počet záznamů: 1

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

SYSNO ASEP	0450858
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Ru complexes of Hoveyda–Grubbs type immobilized on lamellar zeolites: activity in olefin metathesis reactions
Tvůrce(i)	Balcar, Hynek (UFCH-W)_{RID, ORCID} Žilková, Naděžda (UFCH-W)_{RID, ORCID} Kubů, Martin (UFCH-W)_RID Mazur, Michal (UFCH-W)_RID Bastl, Zdeněk (UFCH-W)_{RID, ORCID} Čejka, Jiří (UFCH-W)_{RID, ORCID, SAI}
Zdroj.dok.	Beilstein Journal of Organic Chemistry. - : Beilstein - Institut zur Foerderung der Chemischen Wissenschaften - ISSN 1860-5397 Roč. 11, NOV 2015 (2015), s. 2087-2096
Poč.str.	10 s.
Jazyk dok.	eng - angličtina
Země vyd.	DE - Německo
Klíč. slova	Hoveyda-Grubbs type catalyst ; hybrid catalysts ; lamellar zeolites
Vědní obor RIV	CF - Fyzikální chemie a teoretická chemie
Institucionální podpora	UFCH-W - RVO:61388955
UT WOS	000364363700001
DOI	10.3762/bjoc.11.225
Anotace	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 (<1% of Ru content). XPS analysis revealed that during immobilization ion exchange between Hoveyda–Grubbs type catalyst and zeolitic support occurred in the case of Cl− counter anion; in contrast, PF6 − counter anion underwent partial decomposition.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2016

Počet záznamů: 1