Artículo
Solventless amide synthesis catalyzed by biogenic CaCO3 materials
Chaparro, Sandra; Rojas, Agustin Hugo
; Castillo, Juan Carlos; Portilla, Jaime; Romanelli, Gustavo Pablo
; Pineda Ramos, Pedro Antonio; Elsharif, Asma M.; Martinez, José J.; Luque, Rafael
Fecha de publicación:
17/08/2020
Editorial:
American Chemical Society
Revista:
ACS Sustainable Chemistry and Engineering
e-ISSN:
2168-0485
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Biogenic carbonates were studied as catalysts in this work for the direct synthesis of amides under solvent-free conditions. Solids were synthesized by microbial coprecipitation of CaCl2 and Ni salts and Cu and Fe salts. The catalysts were characterized by thermogravimetric analysis, nitrogen physisorption measurements, X-ray diffraction, and X-ray photoelectron spectroscopy. The polymorphism, hydrophilicity, and textural properties depended on the metal oxides type incorporated on CaCO3. N-Arylsuccinimides synthesis was employed as test reaction, obtaining remarkable selectivity and conversion in the reaction of succinic acid with p-toluidine and aniline, respectively. Optimized conditions were subsequently extended to the solvent-free synthesis of diverse amides in good yields using CuO-CaCO3 as the catalyst in air. The direct amidation protocol was amenable to the use of different primary amines and nonactivated carboxylic acids.
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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
Chaparro, Sandra; Rojas, Agustin Hugo; Castillo, Juan Carlos; Portilla, Jaime; Romanelli, Gustavo Pablo; et al.; Solventless amide synthesis catalyzed by biogenic CaCO3 materials; American Chemical Society; ACS Sustainable Chemistry and Engineering; 8; 35; 17-8-2020; 13139-13146
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