dc.contributor.author | Du Toit, Jean I. | |
dc.contributor.author | Huijsmans, Carlijn A.A. | |
dc.contributor.author | Jordaan, Johannes H.L. | |
dc.contributor.author | Van Sittert, Cornelia G.C.E. | |
dc.contributor.author | Vosloo, Hermanus C.M. | |
dc.contributor.author | Jordaan, Margaritha | |
dc.date.accessioned | 2016-02-08T12:35:04Z | |
dc.date.available | 2016-02-08T12:35:04Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Du 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.issn | 1420-3049 | |
dc.identifier.issn | 1420-3049 (Online) | |
dc.identifier.uri | http://hdl.handle.net/10394/16223 | |
dc.identifier.uri | https://doi.org/10.3390/molecules19055522 | |
dc.identifier.uri | http://www.mdpi.com/journal/molecules | |
dc.description.abstract | Hemilabile 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 lifetime | en_US |
dc.description.sponsorship | South African Department of Science and Technology – National
Research Foundation’s Centre of Excellence in Catalysis (c*change) and the North-West University | en_US |
dc.language.iso | en | en_US |
dc.publisher | MDPI | en_US |
dc.subject | Second generation grubbs precatalyst | en_US |
dc.subject | Pyridinyl-alcoholato ligand | en_US |
dc.subject | 1-octene metathesis | en_US |
dc.subject | Lifetime | en_US |
dc.title | Improved metathesis lifetime: chelating pyridinyl-alcoholato ligands in the second generation Grubbs precatalyst | en_US |
dc.type | Article | en_US |
dc.contributor.researchID | 10792341 - Jordaan, Johannes Hendrik Lodewikus | |
dc.contributor.researchID | 10073817 - Van Sittert, Cornelia Gertina Catharina Elizabeth | |
dc.contributor.researchID | 10063552 - Vosloo, Hermanus Cornelius Moolman | |
dc.contributor.researchID | 12317624 - Du Toit, Jean Isabelle | |
dc.contributor.researchID | 11285214 - Jordaan, Margaritha | |