Show simple item record

dc.contributor.authorDu Toit, Jean I.
dc.contributor.authorHuijsmans, Carlijn A.A.
dc.contributor.authorJordaan, Johannes H.L.
dc.contributor.authorVan Sittert, Cornelia G.C.E.
dc.contributor.authorVosloo, Hermanus C.M.
dc.contributor.authorJordaan, Margaritha
dc.date.accessioned2016-02-08T12:35:04Z
dc.date.available2016-02-08T12:35:04Z
dc.date.issued2014
dc.identifier.citationDu Toit, J.I. et al. 2014. Improved metathesis lifetime: chelating pyridinyl-alcoholato ligands in the second generation Grubbs precatalyst. Molecules, 19:5522-5537. [https://doi.org/10.3390/molecules19055522]en_US
dc.identifier.issn1420-3049
dc.identifier.issn1420-3049 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/16223
dc.identifier.urihttps://doi.org/10.3390/molecules19055522
dc.identifier.urihttp://www.mdpi.com/journal/molecules
dc.description.abstractHemilabile ligands can release a free coordination site “on demand” of an incoming nucleophilic substrate while occupying it otherwise. This is believed to increase the thermal stability and activity of catalytic systems and therefore prevent decomposition via free coordination sites. In this investigation chelating pyridinyl-alcoholato ligands were identified as possible hemilabile ligands for incorporation into the second generation Grubbs precatalyst. The O,N-alcoholato ligands with different steric bulk could be successfully incorporated into the precatalysts. The incorporation of the sterically hindered, hemilabile O,N-ligands improved the thermal stability, activity, selectivity and lifetime of these complexes towards the metathesis of 1-octene. A decrease in the activity of the second generation Grubbs precatalyst was additionally observed after incorporating a hemilabile O,N-ligand with two phenyl groups into the system, while increasing their lifetimeen_US
dc.description.sponsorshipSouth African Department of Science and Technology – National Research Foundation’s Centre of Excellence in Catalysis (c*change) and the North-West Universityen_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.subjectSecond generation grubbs precatalysten_US
dc.subjectPyridinyl-alcoholato liganden_US
dc.subject1-octene metathesisen_US
dc.subjectLifetimeen_US
dc.titleImproved metathesis lifetime: chelating pyridinyl-alcoholato ligands in the second generation Grubbs precatalysten_US
dc.typeArticleen_US
dc.contributor.researchID10792341 - Jordaan, Johannes Hendrik Lodewikus
dc.contributor.researchID10073817 - Van Sittert, Cornelia Gertina Catharina Elizabeth
dc.contributor.researchID10063552 - Vosloo, Hermanus Cornelius Moolman
dc.contributor.researchID12317624 - Du Toit, Jean Isabelle
dc.contributor.researchID11285214 - Jordaan, Margaritha


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record