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Switching the Reactivity of Palladium Diimines with "Ancillary" Ligand to Select between Olefin Polymerization, Branching Regulation, or Olefin Isomerization.
Jones, Glen R; Basbug Alhan, Hatice E; Karas, Lucas J; Wu, Judy I; Harth, Eva.
Afiliación
  • Jones GR; Department of Chemistry, Center of Excellence in Polymer Chemistry, University of Houston, 3585 Cullen Blvd., Houston, Texas, 77004, USA.
  • Basbug Alhan HE; Department of Chemistry, Center of Excellence in Polymer Chemistry, University of Houston, 3585 Cullen Blvd., Houston, Texas, 77004, USA.
  • Karas LJ; Department of Chemistry, Center of Excellence in Polymer Chemistry, University of Houston, 3585 Cullen Blvd., Houston, Texas, 77004, USA.
  • Wu JI; Department of Chemistry, Center of Excellence in Polymer Chemistry, University of Houston, 3585 Cullen Blvd., Houston, Texas, 77004, USA.
  • Harth E; Department of Chemistry, Center of Excellence in Polymer Chemistry, University of Houston, 3585 Cullen Blvd., Houston, Texas, 77004, USA.
Angew Chem Int Ed Engl ; 60(3): 1635-1640, 2021 Jan 18.
Article en En | MEDLINE | ID: mdl-32986896
Coordinating solvents are commonly employed as ancillary ligands to stabilize late transition metal complexes and are conventionally considered to have little effect on the reaction products. Our work identifies that the presence of ancillary ligand in Pd-diimine catalyzed polymerizations of α-olefins can drastically alter reactivity. The addition of different amounts of acetonitrile allows for switching between distinct reaction modes: isomerization-polymerization with high branching (0 equiv.), regular chain-walking polymerization (1 equiv.), and alkene isomerization with no polymerization (>20 equiv.). Optimization of the isomerization reaction mode led to a general set of conditions to switch a wide variety of diimine complexes into efficient alkene isomerization catalysts, with catalyst loading as low as 0.005 mol %.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania