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Type: Artigo de periódico
Title: Wacker oxidation of cyclohexene in the presence of Pd(NO3)(2)/CuSO4/H3PMo12O40
Author: Melgo, MS
Lindner, A
Schuchardt, U
Abstract: The Wacker oxidation of cyclohexene to cyclohexanone, using the chloride ion-free catalytic system Pd(NO3)(2)/CuSO4/H3PMo12O40, was investigated at different air pressures, temperatures, and catalyst concentrations. The results show that this system is very efficient and highly selective. After 1 h of reaction at 80 degreesC and an air pressure of 50 bar, a conversion of 80%, with a turnover frequency of 260 h(-1), and a selectivity of more than 99% for cyclohexanone was obtained. Using aqueous hydrogen peroxide and no external pressure, the oxidation was more rapid, giving 80% conversion already after 30 min and 95% conversion after 60 min without the formation of any byproducts. (C) 2004 Elsevier B.V. All rights reserved.
Subject: wacker oxidation
hydrogen peroxide
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.apcata.2004.06.035
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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