Publicación: Acidic porous carbons involved in the green and selective synthesis of benzodiazepines
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2020-11-01
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info:eu-repo/semantics/openAccess
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Elsevier
Resumen
Eco-sustainable and recyclable porous carbons are reported as metal-free catalysts for the synthesis of benzodiazepines for the first time. The porous carbons were able to efficiently catalyse the synthesis of benzodiazepine 1 from o-phenylendiamine 2 and acetone 3 under mild conditions. Both acidic functions and the porosity of the catalysts were determinant features. High conversion values were obtained when using HNO3 oxidized carbons. The highest selectivity to benzodiazepine 1 was obtained in the presence of the most microporous catalyst N-N, which is indicative of the great influence of porous properties. Stronger acid sites and high microporosity of the carbon treated with H2SO4 yield benzodiazepine 1 with total selectivity.
Descripción
Esta es la versión aceptada del artículo. La versión registrada fue publicada por primera vez en Catalysis Today, Volume 357, 2020, Pages 64-73, ISSN 0920-5861, está disponible en línea en el sitio web del editor:
https://doi.org/10.1016/j.cattod.2019.11.027.
This is the accepted version of the article. The recorded version was first published in Catalysis Today, Volume 357, 2020, Pages 64-73, ISSN 0920-5861, is available online on the publisher's website:
https://doi.org/10.1016/j.cattod.2019.11.027.
Categorías UNESCO
Palabras clave
Activated carbons, heterogeneous catalytic systems, heterocyclic chemistry, benzodiazepines
Citación
M. Godino-Ojer, I. Matos, M. Bernardo, R. Carvalho, Olívia Salomé G.P. Soares, C. Durán-Valle, I.M. Fonseca, E. Pérez Mayoral, Acidic porous carbons involved in the green and selective synthesis of benzodiazepines, Catalysis Today, Volume 357, 2020, Pages 64-73, ISSN 0920-5861, https://doi.org/10.1016/j.cattod.2019.11.027.
Centro
Facultad de Ciencias
Departamento
Química Inorgánica y Química Técnica