Solvent-free oxidation of aldehydes to acids by TBHP using environmental-friendly MnO4-1{\rm{MnO}}_{\bf{4}}^{\bf{-1}}-exchanged Mg-Al hydrotalcite catalyst

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• 作者：VASANT R CHOUDHARY (1) vr.choudhary@ncl.res.in
  DEEPA K DUMBRE (1)
  VIJAY S NARKHEDE (1)
• 关键词：Aldehyde &#8211 ; acid &#8211 ; oxidation &#8211 ; TBHP &#8211 ; MnO4 ; 1_{4}^{ ; 1} ; exchanged Mg&#8211 ; Al&#8211 ; hydrotalcite catalyst
• 刊名：Journal of Chemical Sciences
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：124
• 期：4
• 页码：835-839
• 全文大小：375.2 KB
• 参考文献：1. Wuts P 1987 (Upjohn Co., USA) PCT Int. Appl. WO 8700519 A229 29
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• 作者单位：1. Chemical Engineering and Process Development Division, National Chemical Laboratory, Pune, 411 008 India
• ISSN：0973-7103

文摘

A number of hydrotalcite (Mg–Al, Mn–Al, Co–Al, Ni–Al, Mg–Fe, Mg–Cr and Cu–Al) catalysts, with or without MnO₄-1_{4}^{-1}-exchange, were evaluated for their performance in the solvent-free oxidation of benzaldehyde to benzoic acid by tert-butyl hydroperoxide under reflux in the absence of any solvent. The MnO₄-1_{4}^{-1}-exchanged Mg–Al-hydrotalcite (Mg/Al = 10) showed high activity in the oxidation of different aromatic and aliphatic aldehydes to their corresponding acids and also showed excellent reusability in the oxidation process which is environmental-friendly.