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Catalysis Letters

, Volume 134, Issue 1–2, pp 155–161 | Cite as

Aerobic Oxidation of p-Toluic Acid to Terephthalic Acid over T(p-Cl)PPMnCl/Co(OAc)2 Under Moderate Conditions

  • Y. Xiao
  • W. P. Luo
  • X. Y. Zhang
  • C. C. Guo
  • Q. Liu
  • G. F. Jiang
  • Q. H. Li
Article

Abstract

The aerobic oxidation of p-toluic acid to terephthalic acid over tetra(p-chlorophenylporphinato)manganese (T(p-Cl)PPMnCl)/cobalt acetate was reported for the first time. The co-catalysis of T(p-Cl)PPMnCl/Co(OAc)2 was also studied. The studies indicated that the PTA oxidation was influenced by the catalyst composition, catalyst concentrations and reaction conditions. A preliminary mechanism of this co-catalyzed oxidation reaction was proposed based on experimental observations.

Graphical Abstract

The aerobic oxidation of PTA to TPA over T(p-Cl)PPMnCl/Co(OAc)2 was reported for the first time, and the co-catalysis of T(p-Cl)PPMnCl/Co(OAc)2 for aerobic oxidation of PTA to TPA was also studied. A preliminary mechanism for the PTA oxidation over T(p-Cl)PPMnCl/Co(OAc)2 was proposed based on the experiment results.

Keywords

Metalloporphyrin Cobalt acetate co-Catalysis p-Toluic acid Oxidation Terephthalic acid 

Notes

Acknowledgments

We thank the financial supports of National Natural Science Foundation of China (Grants CN J0830415).

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Y. Xiao
    • 1
  • W. P. Luo
    • 1
  • X. Y. Zhang
    • 1
  • C. C. Guo
    • 1
  • Q. Liu
    • 1
  • G. F. Jiang
    • 1
  • Q. H. Li
    • 1
  1. 1.College of Chemistry and Chemical EngineeringHunan UniversityChangshaPeople Republic of China

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