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Current Catalysis
ISSN (Print): 2211-5447
ISSN (Online): 2211-5455
VOLUME: 3
ISSUE: 2
DOI: 10.2174/2211544702666131224003356      Price:  $58









Evaluation of the Catalytic Activity of H3PW12O40 in the Selective Oxidation of Sulfides to the Corresponding Sulfoxides or Sulfones

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Author(s): R. Frenzel, L. Pizzio, M. Blanco, G. Sathicq and G. Romanelli
Pages 124-130 (7)
Abstract:
H3PW12O40 in bulk form presents suitable properties to be used as catalyst in the selective oxidation of sulfides with 35% aqueous hydrogen peroxide, and sulfoxides or sulfones were obtained as products in high to excellent yields and selectivity. We found that sulfides were oxidized to the corresponding sulfoxides, with near stoichiometric 35% w/V aqueous hydrogen peroxide, at room temperature (20ºC) and with a catalytic amount of bulk H3PW12O40. Similarly, sulfides were transformed to the corresponding sulfones using excess of 35% w/V aqueous hydrogen peroxide and a temperature of 70ºC. In both cases acetonitrile was used as reaction solvent.
Graphical Abstract:
Keywords:
Aqueous hydrogen peroxide, Keggin heteropolyacid, sulfide oxidation, sulfoxides, sulfones.
Affiliation:
Centro de Investigacion y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco" (CINDECA), Departamento de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 Nº 257 (B1900AJK) La Plata, Argentina.