Ruthenium Olefin Metathesis Catalysts Bearing a Macrocyclic N-Heterocyclic Carbene Ligand: Improved Stability and Activity

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dc.contributor.authorKośnik, Wioletta
dc.contributor.authorLichosyt, Dawid
dc.contributor.authorŚnieżek, Marcin
dc.contributor.authorJanaszkiewicz, Angelika
dc.contributor.authorWoźniak, Krzysztof
dc.contributor.authorMalińska, Maura
dc.contributor.authorTrzaskowski, Bartosz
dc.contributor.authorKajetanowicz, Anna
dc.contributor.authorGrela, Karol
dc.contributor.organizationBiological and Chemical Research Centre, Faculty of Chemistry, University of Warsawen
dc.contributor.organizationInstitute of Organic Chemistry, Polish Academy of Sciencesen
dc.contributor.organizationCentre of New Technologies, University of Warsawen
dc.contributor.organizationInstitute of Physical Chemistry, Polish Academy of Sciencesen
dc.date.accessioned2022-10-17T13:50:42Z
dc.date.available2022-10-17T13:50:42Z
dc.date.issued2022
dc.description.abstractFormation of sterically hindered C−C double bonds via catalytic olefin metathesis is considered a very challenging task for Ru catalysts. This limitation led to the development of specialised catalysts bearing sterically reduced N-heterocyclic carbene (NHC) ligands that are very active in such transformations, yet significantly less stable as compared to general purpose catalysts. To decrease the small-size NHC catalysts susceptibility to decomposition, a new NHC ligand was designed, in which two sterically reduced aryl arms were tied together by a C-8 alkyl chain. The installation of this macrocyclic ligand on the ruthenium centre led to the formation of an olefin metathesis catalyst (trans-Ru6). Interestingly, this complex undergoes transformation into an isomer bearing two Cl ligands in the cis-arrangement (cis-Ru6). These two isomeric complexes exhibit similarly high thermodynamic stability, yet different application profiles in catalysis.en
dc.description.sponsorshipNational Science Centre, MAESTRO: DEC-2019/34/A/ST4/00372 Biological and Chemical Research Centre, University of Warsaw, established within the project co-financed by European Union from the European Regional Development Fund under the Operational Programme Innovative Economy, 2007–2013
dc.identifier.citationAngew. Chem. Int. Ed. 2022, 61, e202201472. https://doi.org/10.1002/anie.202201472en
dc.identifier.doi10.1002/anie.202201472
dc.identifier.issn1433-7851
dc.identifier.issn1521-3773
dc.identifier.urihttps://open.icm.edu.pl/handle/123456789/21684
dc.language.isoen
dc.publisherWileyen
dc.rightsUznanie autorstwa 4.0 Międzynarodowe*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectcatalyst designen
dc.subjectN-heterocyclic carbenesen
dc.subjectolefin metathesisen
dc.subjectreaction mechanismsen
dc.subjectrutheniumen
dc.titleRuthenium Olefin Metathesis Catalysts Bearing a Macrocyclic N-Heterocyclic Carbene Ligand: Improved Stability and Activityen
dc.typearticleen
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