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Hoveyda-Grubbs type metathesis catalyst immobilized on mesoporous molecular sieves MCM-41 and SBA-15

SYSNO ASEP	0358311
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Hoveyda-Grubbs type metathesis catalyst immobilized on mesoporous molecular sieves MCM-41 and SBA-15
Author(s)	Balcar, Hynek (UFCH-W)_{RID, ORCID} Shinde, Tushar (UFCH-W)_RID Žilková, Naděžda (UFCH-W)_{RID, ORCID} Bastl, Zdeněk (UFCH-W)_{RID, ORCID}
Source Title	Beilstein Journal of Organic Chemistry. - : Beilstein - Institut zur Foerderung der Chemischen Wissenschaften - ISSN 1860-5397 Roč. 7, January (2011), s. 22-28
Number of pages	7 s.
Language	eng - English
Country	DE - Germany
Keywords	alkene metathesis ; catalyst immobilization ; hybrid catalysis
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	IAA400400805 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	KAN100400701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000285959000001
DOI	10.3762/bjoc.7.4
Annotation	A commercially available Hoveyda-Grubbs type catalyst (RC303 Zhannan Pharma) was immobilized on mesoporous molecular sieves MCM-41 and on SBA-15 by direct interaction with the sieve wall surface. The immobilized catalysts exhibited high activity and nearly 100% selectivity in several types of alkene metathesis reactions. Ru leaching was found to depend on the substrate and solvent used (the lowest leaching was found for ring-closing metathesis of 1,7-octadiene in cyclohexane - 0.04% of catalyst Ru content). Results of XPS, UV-vis and NMR spectroscopy showed that at least 76% of the Ru content was bound to the support surface non-covalently and could be removed from the catalyst by washing with THF.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2012

Number of the records: 1