Hoveyda–Grubbs type metathesis catalyst immobilized on mesoporous molecular sieves MCM-41 and SBA-15
2011 ◽
Vol 7
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pp. 22-28
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Keyword(s):
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.
2014 ◽
Vol 8
(1)
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pp. 95-103
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1994 ◽
Vol 90
(18)
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pp. 2821-2826
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2002 ◽
pp. 1355-1362
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Keyword(s):
Keyword(s):
2001 ◽
Vol 171
(1-2)
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pp. 229-241
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Keyword(s):
2004 ◽
Vol 65
(2-3)
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pp. 571-581
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1995 ◽
Vol 5
(4)
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pp. 211-218
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