Role of grafted alkoxybenzylidene ligand in silica-supported Hoveyda-Grubbs-type catalysts

Using both circulating flow and batch reaction systems, we explored the role of immobilized alkoxybenzylidene ligands in capturing and stabilizing active ruthenium species. The bidentate ligands turned out to considerably affect reaction rate, catalyst decomposition, leaching and recycling. It was a...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2015-01, Vol.51 (6), p.1042-1045
Main Authors: Cheong, Jian Liang, Wong, Daniel, Lee, Song-Gil, Lim, Jaehong, Lee, Su Seong
Format: Article
Language:English
Subjects:
Benzylidene Compounds - chemistry
Benzylidene Compounds - metabolism
Catalysis
Catalysts
Circulating
Dynamical systems
Dynamics
Leaching
Ligands
Recycling
Ruthenium
Silicon Dioxide - chemistry
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Summary:Using both circulating flow and batch reaction systems, we explored the role of immobilized alkoxybenzylidene ligands in capturing and stabilizing active ruthenium species. The bidentate ligands turned out to considerably affect reaction rate, catalyst decomposition, leaching and recycling. It was also observed that the dynamic release-return catalytic pathway worked more efficiently in a batch system leading to less catalyst decomposition and leaching.
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc08627a