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Triazole-modified Ru-carbene complexes: A valid olefin metathesis pre-catalyst for dynamic covalent chemistry via C=C bond formation.
Wang, Chenhuan; Zhang, Shuyao; Yuan, Teng; Jimoh, Abiola Azee; Abreu, Maxwell; Shan, Chuan; Wojtas, Lukasz; Xing, Yangyang; Hong, Xin; Shi, Xiaodong.
Afiliación
  • Wang C; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Zhang S; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Yuan T; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Jimoh AA; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Abreu M; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Shan C; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Wojtas L; Department of Chemistry, University of South Florida, Tampa, FL, USA.
  • Xing Y; Department of Chemistry, Zhejiang University, China.
  • Hong X; Department of Chemistry, Zhejiang University, China.
  • Shi X; Department of Chemistry, University of South Florida, Tampa, FL, USA.
Chem Catal ; 3(8)2023 Aug 17.
Article en En | MEDLINE | ID: mdl-37873035
The 1,2,3-triazole coordinated ruthenium carbene complexes (TA-Ru) were reported for the first time as a new class of modified Grubbs catalyst to achieve challenging olefin metathesis at higher temperatures without catalyst decomposition. Previously reported N-tethered Ru-carbene complexes all suffered from rapid cis/trans isomerization, causing significantly reduced catalyst reactivity. These new TA-Ru complexes hold the active trans-dichloro conformation even at 80 °C, allowing effective olefin metathesis for challenging substrates. With this new TA-Ru catalyst, cross-metathesis (CM), ring-closing metathesis (RCM) and dynamic covalent chemistry (DCvC) were achieved. Excitingly, the reactivity of TA-Ru prevails all previously reported N-coordinated Ru-carbene precatalysts, Grubbs II, and Hoveyda-Grubbs, making the TA-Ru a transformative catalytic system in olefin catalysis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Catal Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Países Bajos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Catal Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Países Bajos