Sulfonated alumina: A suitable catalyst for furfural biomass building-block valorization through multicomponent reactions

Sulfonated alumina was synthetized and tested for the first time in furfural valorization through a multicomponent reaction for the preparation of a nitrogenated heterocyclic compound containing the furan substructure. Ten polysubstituted heterocycles, belonging to the dihydropyrimidinones (thiones)...

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Detalles Bibliográficos
Autores principales:	Nope, Eliana, Ruiz, D., Sathicq, Angel, Romanelli, Gustavo
Formato:	Online
Lenguaje:	spa
Publicado:	Universidad Pedagógica y Tecnológica de Colombia 2021
Materias:	valorización furfural, sílice sulfonada, reacción multicomponente, compuestos heterocíclicos nitrogenados, análisis de métricas verdes furfural valorization, sulfonated silica, multicomponent reaction, nitrogenated heterocyclic compounds, green metrics analysis
Acceso en línea:	https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/12821

Descripción
Sumario:	Sulfonated alumina was synthetized and tested for the first time in furfural valorization through a multicomponent reaction for the preparation of a nitrogenated heterocyclic compound containing the furan substructure. Ten polysubstituted heterocycles, belonging to the dihydropyrimidinones (thiones) and 1,4-dihydropyridines, were obtained with very good yields (70% – 85%) using the tandem methodology and green reaction conditions.  The catalyst was easily separated from the reaction medium, giving a high yield in the reusability studies. Green metrics were analyzed in order to consider the reaction suitability.