CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
Keggin heteropolyacids Mo-based as catalysts in the green and selective oxidation of diphenyl sulfide
Autor/es:
PALERMO, VALERIA; G.P. ROMANELLI; P.G. VÁZQUEZ.
Revista:
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 373 p. 142 - 142
ISSN:
1381-1169
Resumen:
Heteropolyacids are used as redox catalysts due to their bifunctional properties. Some advantages over conventional catalysts, such as selectivity, easy isolation and reuse, are worth noting. In homogeneous conditions their isolation and recycling can be harder, so thatthey are supported for their use as heterogeneous catalysts. In this work, we compare the catalytic activity of different heteropolyacids with Keggin structure, supported on pure and functionalized silica (with 3-aminopropyltrimethoxysilane). H6PMo11BO40, H6PMo11BiO40,H6PMo11LaO40,andH6PMo11YO40 weresynthesized, supportedandcharacterizedbyseveral physicochemical techniques. Highly selective results were obtained in the selective oxidation of diphenyl sulfide to diphenyl sulfoxide or diphenyl sulfone. Besides, these catalysts can be reused. The above-mentioned reaction is useful due to the importance of these compounds as intermediates in the synthesis of biologically significant molecules
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