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Efficient oxidation of benzyl alcohol with heteropolytungstate as reaction-controlled phase-transfer catalyst

Chinese Chemical Letters 2007年第8期18卷 936-938页

作者： Zhi Huan Weng Jin Yan Wang Xi Gao Jian Department of Polymer Science and Materials Dalian University of Technology Liaoning Research Center of High Performance Resin Engineering and Technology Dalian 116012 China

A series of heteropolytungstates has been synthesized and utilized as catalysts to catalyze oxidation of benzyl alcohol with aqueous hydrogen peroxide. The results indicated that three of these catalysts showed the properties of reaction-controlled phasetransfer catalysis, and they had excellent catalytic ability to the oxidation of benzyl alcohol. No other by-products were detected by gas chromatography. Once the hydrogen peroxide was consumed completely, the catalyst precipitated from solvent, and the results of the catalyst recycle showed that the catalyst had high stability.

关键词： Heteropolytungstate reaction-controlled phase-transfer Benzyl alcohol Benzaldehyde Hydrogen peroxide

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Heteropolymolybdate as a New reaction-controlled phase-transfer Catalyst for Efficient Alcohol Oxidation with Hydrogen Peroxide

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Chinese Chemical Letters 2006年第6期17卷 848-850页

作者： Zhi Huan WENG Jin Yan WANG Xi Gao JIAN Department of Polymer Science and Materials Dalian University of TechnologyLiaoning High Performance Polymer Engineering Research Center Dalian 116012

A new catalytic process for the synthesis of aldehyde from alcohol by oxidation with H202 with high selectivity, was studied. In this system, heteropolymolybdate [C7H7N（CH3）3]3 {PO4[MoO（O2）2]4} was utilized as the reaction-controlled phase-transfer catalyst to catalyze oxidation of benzyl and aliphatic alcohols. The molar ratio of H2O2 and alcohol was 0.75, no other by-products were detected by gas chromatography, the results of oxidation reaction indicated that the catalyst has high activity and stability.

关键词： Heteropolymolybdate reaction-controlled phase-transfer alcohol oxidation.

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