Mono-substituted Keggin-polyoxometalate complexes as effective and recyclable catalyst for the oxidation of alcohols with hydrogen peroxide in biphasic system

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• 作者：Jianmin Wang ; Liang Yan ; Guixian Li ; Xiaolai Wang ; Yong Ding and Jishuan Suo
• 关键词：Oxidation of alcohol ; Mono-substituted Keggin-polyoxometalate ; Hydrogen peroxide ; Biphasic catalysis
• 刊名：Tetrahedron Letters
• 出版年：2005
• 期刊代码：109_00404039
• 类别：ch
• 出版时间：2005
• 卷：46
• 期：41
• 页码：7023-7027
• 文件大小：125 K

摘要

Mono-substituted Keggin-polyoxymetalate complex Na₆ [SiW₁₁ZnH₂O₄₀]·12H₂O was demonstrated to be an effective catalyst for the selective oxidation of alcohols in the presence of hydrogen peroxide as oxidant. The reaction was carried out in an aqueous/oil biphasic system, which allowed easy recovery of catalyst, under relative mild conditions. The catalyst could be reused five times without appreciable loss of activity.