Chem. J. Chinese Universities ›› 1990, Vol. 11 ›› Issue (5): 540.

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An ESRtudy on Quinone Radical Anions Formed by the Reaction of Ascorbic Acid with Quinones

Zhang Fa, Fang Huai, Chen Wei, Liu Zhongli, Liu Youcheng   

  1. The National Laboratory OK Applied Organic Chemistry at Lanzhou University, Lanzhou
  • Received:1989-01-19 Online:1990-05-24 Published:1990-05-24

Abstract: Quinone radical anions of p-benzoquinone, 2,5-dimethyl-, 2,6-dimetiiyl-,tert-butyl-, and 2,6-di-tert-butyl-p-benzoquinones, 1,4-naphthaquinone and 2-methylnaphthaquinone were detected by ESR in a water-DMSO mixed solvent with pH = 8. 5 when the corresponding quinones reacted with ascorbic acid. The results were rationalized by the single electron transfer reaction between the quinone and ascorbic acid.

Key words: Quinone radical anion, Ascorbic acid, Single electron transfer

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