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Homogeneous Tetradentate Ruthenium Hydrogenation Catalysts for the Deoxygenation of Biomass-Derived Substrates in Aqueous Acidic Media

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dc.contributor.advisor Schlaf, Marcel
dc.contributor.author Minard, Thomas
dc.date.accessioned 2015-01-05T19:40:38Z
dc.date.available 2015-01-05T19:40:38Z
dc.date.copyright 2014-12
dc.date.created 2014-12-11
dc.date.issued 2015-01-05
dc.identifier.uri http://hdl.handle.net/10214/8650
dc.description.abstract This thesis is an investigation of tetradentate ruthenium catalyst systems incorporating metal-ligand bifunctionality for the deoxygenation of biomass-derived substrates. Tridentate systems employed by the Schlaf group are proven catalysts for the partial deoxygenation of biomass-derived substrates. It was postulated that tetradentate systems would exhibit increases in temperature stability and catalytic activity relative to analogous tridentate systems. [Ru(6,6′-bis(aminomethyl)-2,2′-bipyridine)(OH2)2](OTf)2 was synthesized in situ using the catalyst platform [Ru(DMF)6](OTf)3 and fully characterized. The catalyst system was stable to temperatures of 200°C, and was effective for the conversion of the model substrate 2,5-hexanedione, but was not recyclable. When tested in water against the more complex substrate 2,5-dimethylfuran, substrate polymerization was observed, an effect that was minimized in alternative solvent systems at the cost of catalytic activity. The addition of a strong acid co-catalyst also decreased the overall catalytic activity. A structurally analogous catalyst system was also investigated, but proved inactive for the conversion of the model substrate. This was likely due to flexibility of the ligand, so the synthesis of a rigid analog of this ligand was attempted, but ultimately proved unsuccessful. en_US
dc.language.iso en en_US
dc.rights Attribution 2.5 Canada *
dc.rights.uri http://creativecommons.org/licenses/by/2.5/ca/ *
dc.subject catalysis en_US
dc.subject homogeneous en_US
dc.subject biomass en_US
dc.subject hydrogenation en_US
dc.subject deoxygenation en_US
dc.subject ruthenium en_US
dc.title Homogeneous Tetradentate Ruthenium Hydrogenation Catalysts for the Deoxygenation of Biomass-Derived Substrates in Aqueous Acidic Media en_US
dc.type Thesis en_US
dc.degree.programme Chemistry en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Chemistry en_US


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Attribution 2.5 Canada Except where otherwise noted, this item's license is described as Attribution 2.5 Canada