Oxidation of Cyclohexylamine to Cyclohexanone Oxime Catalyzed by Al2O3-SiO2

doi:10.3724/SP.J.1095.2012.20072

Chinese Journal of Applied Chemistry

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Oxidation of Cyclohexylamine to Cyclohexanone Oxime Catalyzed by Al₂O₃-SiO₂

GAO Meixiang, LUO Dong, MAO Liqiu^*, YIN Dulin

(Institute of Fine Catalysis and Synthesis,Hunan Normal University,Changsha 410081,China)

Received:2012-03-01 Revised:2012-05-08 Published:2013-01-10 Online:2013-01-10
Contact: mao liqiu

Abstract

Abstract: The oxidation of cyclohexylamine catalyzed by Al2O3-SiO2 catalyst was carried out under mild conditions. The effects of solvent amount, catalyst amount, reaction time and reaction temperature on the reaction were investigated. Under the conditions of V(acetonitrile)∶V(cyclohexylamine)=3∶1, 31.0% mass fraction of catalyst, reaction temperature of 75 ℃, and reaction time of 5 h, the conversion of cyclohexylamine reaches up to 100% and the selectivity for cyclohexanone oxime is 83.6%. A reaction mechanism is proposed.

Key words: cyclohexylamine, oxidation, cyclohexanone oxime

CLC Number:

O643

GAO Meixiang, LUO Dong, MAO Liqiu*, YIN Dulin. Oxidation of Cyclohexylamine to Cyclohexanone Oxime Catalyzed by Al₂O₃-SiO₂[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2012.20072.

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Oxidation of Cyclohexylamine to Cyclohexanone Oxime Catalyzed by Al₂O₃-SiO₂

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