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A new perylenequinone from the fruit bodies of Bulgaria inquinans

P Z Xian Li1, N L Jing Xu, D-L Meng

  • 1Research Department of Natural Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China. proflixian@163.com

Journal of Asian Natural Products Research
|December 6, 2006
PubMed

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Oxidation of Phenols to Quinones01:17

Oxidation of Phenols to Quinones

In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...