Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide

H₄PMo₁₁VO₄₀, H₅PMo₁0V2O₄₀ and H₉PMo₆V₆O₄₀ acids and an acidic pyridinium salt of H₄PMo₁₁VO₄₀ were synthesized. They were characterized by FT-IR and the variations of their acid properties were determined by titration with n-butylamine. They proved to be highly active and selective catalysts for the...

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Detalles Bibliográficos
Autores principales:	Romanelli, Gustavo Pablo, Villabrille, Paula Isabel, Cáceres, Carmen V., Vázquez, Patricia Graciela, Tundo, Pietro
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2011
Materias:	Química Sulfide oxidation Hydrogen peroxide Keggin-type molybdovanadophosphoric acids Keggin-type molybdovanadophosphate Pyridinium salt
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/128241
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-128241
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Química Sulfide oxidation Hydrogen peroxide Keggin-type molybdovanadophosphoric acids Keggin-type molybdovanadophosphate Pyridinium salt
spellingShingle	Química Sulfide oxidation Hydrogen peroxide Keggin-type molybdovanadophosphoric acids Keggin-type molybdovanadophosphate Pyridinium salt Romanelli, Gustavo Pablo Villabrille, Paula Isabel Cáceres, Carmen V. Vázquez, Patricia Graciela Tundo, Pietro Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide
topic_facet	Química Sulfide oxidation Hydrogen peroxide Keggin-type molybdovanadophosphoric acids Keggin-type molybdovanadophosphate Pyridinium salt
description	H₄PMo₁₁VO₄₀, H₅PMo₁0V2O₄₀ and H₉PMo₆V₆O₄₀ acids and an acidic pyridinium salt of H₄PMo₁₁VO₄₀ were synthesized. They were characterized by FT-IR and the variations of their acid properties were determined by titration with n-butylamine. They proved to be highly active and selective catalysts for the hydrogen peroxide oxidation of methyl phenyl sulfide to the corresponding sulfoxide or sulfone. The conversion and selectivity results may be explained in terms of the co-existence of acidic and oxidative properties in the catalysts. On the other hand, a convenient catalytic homogeneous procedure has been found to oxidize different sulfides to sulfoxides or sulfones, with 35% aqueous H₂O₂, using (PyH)H₃PMo₁₁VO₄₀ as catalyst. The oxidation reaction is carried out at room temperature for sulfoxides or 40 °C for sulfones and requires a short time. The sulfoxides or sulfones were obtained with excellent yields by controlling the amount of H₂O₂.
format	Articulo Articulo
author	Romanelli, Gustavo Pablo Villabrille, Paula Isabel Cáceres, Carmen V. Vázquez, Patricia Graciela Tundo, Pietro
author_facet	Romanelli, Gustavo Pablo Villabrille, Paula Isabel Cáceres, Carmen V. Vázquez, Patricia Graciela Tundo, Pietro
author_sort	Romanelli, Gustavo Pablo
title	Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide
title_short	Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide
title_full	Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide
title_fullStr	Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide
title_full_unstemmed	Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide
title_sort	keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide
publishDate	2011
url	http://sedici.unlp.edu.ar/handle/10915/128241
work_keys_str_mv	AT romanelligustavopablo kegginheteropolycompoundsascatalystsforliquidphaseoxidationofsulfidestosulfoxidessulfonesbyhydrogenperoxide AT villabrillepaulaisabel kegginheteropolycompoundsascatalystsforliquidphaseoxidationofsulfidestosulfoxidessulfonesbyhydrogenperoxide AT cacerescarmenv kegginheteropolycompoundsascatalystsforliquidphaseoxidationofsulfidestosulfoxidessulfonesbyhydrogenperoxide AT vazquezpatriciagraciela kegginheteropolycompoundsascatalystsforliquidphaseoxidationofsulfidestosulfoxidessulfonesbyhydrogenperoxide AT tundopietro kegginheteropolycompoundsascatalystsforliquidphaseoxidationofsulfidestosulfoxidessulfonesbyhydrogenperoxide
bdutipo_str	Repositorios
_version_	1764820452139597825

Keggin heteropolycompounds as catalysts for liquid-phase oxidation of sulfides to sulfoxides/sulfones by hydrogen peroxide

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