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Journal of the Mexican Chemical Society
Print version ISSN 1870-249X
J. Mex. Chem. Soc vol.54 n.4 Ciudad de México Oct./Dec. 2010
Article
NEthylbenzylammonium Fluorochromate (VI) Adsorbed on Silica Gel, a Mild and Selective Heterogeneous Reagent
S. Zahra SayyedAlangi* and Mohammad T. Baei
Islamic Azad University, Azadshahr Branch, Department of Chemistry, Azadshahr, Golestan, Iran. Tel. (+98)1722240194, Fax. (+98)1746724003. zalangi_szalangi@yahoo.com
Received July 12, 2010.
Accepted September 8, 2010.
Abstract
A mild and selective method for the oxidation of primary and secondary alcohols to their corresponding aldehydes and ketones with Nethylbenzylammonium fluorochromate (VI), EBAFC, is reported. Stability, reaction rate, ease of workup and efficiency of the EBAFC are considerably increased upon its adsorption on silica gel. The Nemylbenzylammonium fluorochromate (VI) adsorbed on silica gel is inert to aldehydes, ketones, oximes, thiols, sulfides, phenols, pyrans, trimethylsilanes, malonates and thioacetamides.
Keywords: Nethylbenzylammonium Fluorochromate (VI), Heterogeneous Oxidant, Alcohols, Aldehyde, Ketone.
Resumen
Se describe un método suave y selectivo para la oxidación de alcoholes primarios y secundarios a sus aldehidos y cetonas correspondientes, con el fluorocromato de Netil bencil amonio (FCEBA). La estabilidad, la velocidad de la reacción, la facilidad en el trabajo de la reacción y la eficiencia del FCEBA se incrementan considerablemente cuando este reactivo se adsorbe sobre gel de sílice. El fluorocromato de Netil bencil amonio (VI) adsorbido sobre gel de sílice es inerte con aldehidos, cetonas, oximas, tioles, sulfuros, fenoles, piranos, trimetilsilanos, malonatos y tioacetamidas.
Palabras clave: Fluorocromato de Netil bencil amonio (VI), Oxidantes heterogéneos, Alcoholes, Aldehídos, Cetonas.
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