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

  • Datos identificativos

    Identificador: PC:2701
    Autores:
    Cuesta-Aluja, L.Campos-Carrasco, A.Castilla, J.Reguero, M.Masdeu-Bultó, A.M.Aghmiz, A.
    Resumen:
    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.
  • Otros:

    Autor según el artículo: Cuesta-Aluja, L.; Campos-Carrasco, A.; Castilla, J.; Reguero, M.; Masdeu-Bultó, A.M.; Aghmiz, A.
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: CUESTA ALUJA, LAIA; CAMPOS CARRASCO, ARIADNA; Castilla, J.; REGUERO DE LA POZA, MARIA DEL MAR; MASDEU BULTÓ, ANNA MARIA; Aghmiz, A.
    Palabras clave: Chemical fixation of carbon dioxide Zinc(II) catalysts Schiff base ligands
    Resumen: 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.
    Grupo de investigación: Organometàl.lics i Catàlisi Homogènia Química Quàntica
    Áreas temáticas: Química Química Chemistry
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2212-9820
    Identificador del autor: ; ; 0000-0003-1736-847X; ; ; n/a
    Fecha de alta del registro: 2017-03-22
    Página final: 22
    Volumen de revista: 14
    Versión del articulo depositado: info:eu-repo/semantics/submittedVersion
    Enlace a la fuente original: http://www.sciencedirect.com/science/article/pii/S2212982016300026?via%3Dihub
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI del artículo: https://doi.org/10.1016/j.jcou.2016.01.002
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2016
    Página inicial: 10
    Tipo de publicación: Article Artículo Article
  • Palabras clave:

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