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    • DEP67 - Artículos de revista
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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/33419

    Título
    Diastereo- and Enantioselective Syntheses of Trisubstituted Benzopyrans by Cascade Reactions Catalyzed by Monomeric and Polymeric Recoverable Bifunctional Thioureas and Squaramides
    Autor
    Andrés García, José MaríaAutoridad UVA Orcid
    Maestro Fernández, AliciaAutoridad UVA Orcid
    Valle Álvarez, María
    Valencia, Isabel
    Pedrosa Sáez, RafaelAutoridad UVA Orcid
    Año del Documento
    2018
    Editorial
    American Chemical Society
    Descripción
    Producción Científica
    Documento Fuente
    ACS Omega, 2018, 3 (12), pp 16591–16600
    Abstract
    4-Vinylphenyl-substituted squaramides have been tested as organocatalysts for the diastereo- and enantioselective synthesis of trisubstituted benzopyrans via an oxa-Michael intramolecular nitro-Michael cascade reaction. Both the enantio- and diastereoselection were good to moderate, depending on the nature of the chiral scaffold in the catalyst. The diastereoselection is better for the most active catalyst because the final products epimerize at C-3 along the time. Supported squaramide sq-9 prepared by copolymerization of sq-4 with styrene and divinylbenzene is also effective in promoting the cascade reaction, and it is recoverable and reusable for five cycles maintaining the activity.
    Palabras Clave
    Catalizadores
    Gestión de residuos
    Catalysts
    Waste management
    ISSN
    2470-1343
    Revisión por pares
    SI
    DOI
    10.1021/acsomega.8b02302
    Patrocinador
    Ministerio de Economía, Industria y Competitividad (Project FEDER-CTQ2014-59870-P)
    Junta de Castilla y León (Projects FEDER-VA115P17 and VA149G18)
    Version del Editor
    https://pubs.acs.org/doi/10.1021/acsomega.8b02302
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/33419
    Derechos
    openAccess
    Collections
    • DEP67 - Artículos de revista [52]
    • CINQUIMA - Artículos de revista [162]
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    Attribution-NonCommercial-NoDerivatives 4.0 InternationalExcept where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International

    Universidad de Valladolid

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