Research on Chemical Intermediates

, Volume 41, Issue 10, pp 7115–7124 | Cite as

An eco-friendly Co(OAc)2-catalyzed aerobic oxidation of 4-benzylphenols into 4-hydroxybenzophenones

  • Jian-Gang Huang
  • Ying Guo
  • Jian-An Jiang
  • Hong-Wei Liu
  • Ya-Fei Ji
Article
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Received:
Accepted:

Abstract

An undecorated Co(OAc)2-catalyzed aerobic oxidation system has been reported that enables direct transformation of 4-benzylphenols into the corresponding 4-hydroxybenzophenones. The procedure is especially suitable for electron-withdrawing group-containing substrates, which are commonly inefficient to conduct this category of oxidation. Based on well-defined p-benzoquinone methides and the confirmed ethereal intermediate, a plausible mechanism was depicted.

Keywords

4-Benzylphenols 4-Hydroxybenzophenones Aerobic oxidation Co(OAc)2·4H2O Ethylene glycol 
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Notes

Acknowledgments

We gratefully thank the National Natural Science Foundation of China (Project Nos. 21176074 and 21476074) and Research Fund for the Doctoral Program of Higher Education of China (Project No. 20130074110009) for financial support.

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Jian-Gang Huang
    • 1
  • Ying Guo
    • 1
  • Jian-An Jiang
    • 1
  • Hong-Wei Liu
    • 1
  • Ya-Fei Ji
    • 1
  1. 1.School of PharmacyEast China University of Science and TechnologyShanghaiPeople’s Republic of China

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