Artículo
Ternary hydrotalcites in the multicomponent synthesis of 4H-pyrans
Nope Vargas, Eliana Rocio
; Sathicq, Angel Gabriel
; Martínez, José J.; Rojas, Hugo A.; Luque, Rafael; Romanelli, Gustavo Pablo
Fecha de publicación:
01/2020
Editorial:
Multidisciplinary Digital Publishing Institute
Revista:
Catalysts
e-ISSN:
2073-4344
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Lamellar double hydroxides (LDH) with double divalent cations were synthesized by the co-precipitation method and studied in the multicomponent synthesis of 4H-pyrans. The solids obtained were characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR), N2 adsorption isotherms, and thermogravimetric analysis (TGA). The XRD patterns confirmed the formation of LDHs in which the incorporation of Ni2+ or Co2+ improves their crystalline and textural properties. The results of catalytic activity showed that the synthesis of 4H-pyrans is favored in solvent-free conditions with the LDH–Ni catalyst, avoiding calcination processes. In addition, it was found that hydrotalcite with double divalent cations can conduct this reaction through multicomponent synthesis or by the Michael addition reaction, which can be performed by different types of basicity that depend on the composition of another divalent cation in the brucite layer or a calcination process.
Palabras clave:
4H-PYRANS
,
HYDROTALCITES
,
MULTICOMPONENT REACTION
,
SOLVENT-FREE
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Articulos(CINDECA)
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Citación
Nope Vargas, Eliana Rocio; Sathicq, Angel Gabriel; Martínez, José J.; Rojas, Hugo A.; Luque, Rafael; et al.; Ternary hydrotalcites in the multicomponent synthesis of 4H-pyrans; Multidisciplinary Digital Publishing Institute; Catalysts; 10; 1; 1-2020; 1-17
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