Articles producció científica> Química Física i Inorgànica

Highly active and selective Zn(II)-NN'O Schiff base catalysts for the cycloaddition of CO2 to epoxides

  • Dades identificatives

    Identificador: PC:2701
    Autors:
    Cuesta-Aluja, L.Campos-Carrasco, A.Castilla, J.Reguero, M.Masdeu-Bultó, A.M.Aghmiz, A.
    Resum:
    Mononuclear Zn(II) complexes with tridentate NN'O-donor base Schiff ligand N-(2- pyridyl)methyl-2-hydroxy-3,5-di-tert-butylbenzaldimine (1H) combined with a cocatalyst are active for the cycloaddition of CO2 and epoxides. They provide cyclic carbonates selectively even with the more hindered substrates such as cyclohexene oxide and methyl epoxyoleate. The best conditions were achieved running the reaction in expanded neat substrate in CO2 as reaction media. The activity obtained for the cycloaddition of CO2 to styrene oxide reached an initial TOF of 3733 h-1. The solid state structures of [Zn(1)2] and [Zn(1)(OAc)2]n were determined by X ray diffraction methods. Relative stability of the species in solution was analysed by DFT calculations.
  • Altres:

    Autor segons l'article: Cuesta-Aluja, L.; Campos-Carrasco, A.; Castilla, J.; Reguero, M.; Masdeu-Bultó, A.M.; Aghmiz, A.
    Departament: Química Física i Inorgànica
    Autor/s de la URV: CUESTA ALUJA, LAIA; CAMPOS CARRASCO, ARIADNA; Castilla, J.; REGUERO DE LA POZA, MARIA DEL MAR; MASDEU BULTÓ, ANNA MARIA; Aghmiz, A.
    Paraules clau: Chemical fixation of carbon dioxide Zinc(II) catalysts Schiff base ligands
    Resum: Mononuclear Zn(II) complexes with tridentate NN'O-donor base Schiff ligand N-(2- pyridyl)methyl-2-hydroxy-3,5-di-tert-butylbenzaldimine (1H) combined with a cocatalyst are active for the cycloaddition of CO2 and epoxides. They provide cyclic carbonates selectively even with the more hindered substrates such as cyclohexene oxide and methyl epoxyoleate. The best conditions were achieved running the reaction in expanded neat substrate in CO2 as reaction media. The activity obtained for the cycloaddition of CO2 to styrene oxide reached an initial TOF of 3733 h-1. The solid state structures of [Zn(1)2] and [Zn(1)(OAc)2]n were determined by X ray diffraction methods. Relative stability of the species in solution was analysed by DFT calculations.
    Grup de recerca: Organometàl.lics i Catàlisi Homogènia Química Quàntica
    Àrees temàtiques: Química Química Chemistry
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2212-9820
    Identificador de l'autor: ; ; 0000-0003-1736-847X; ; ; n/a
    Data d'alta del registre: 2017-03-22
    Pàgina final: 22
    Volum de revista: 14
    Versió de l'article dipositat: info:eu-repo/semantics/submittedVersion
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2016
    Pàgina inicial: 10
    Tipus de publicació: Article Artículo Article
  • Paraules clau:

    Anhídrid carbònic
    Catalitzadors
    Chemical fixation of carbon dioxide
    Zinc(II) catalysts
    Schiff base ligands
    Química
    Química
    Chemistry
    2212-9820
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