Spectral study of ascorbic acid forms in radical chain oxidation processes in aprotic medium

  • O. V. Smirnova Litvinenko Institute of physico-organic chemistry and coal chemistry of NAS of Ukraine
  • I. V. Efimova Litvinenko Institute of physico-organic chemistry and coal chemistry of NAS of Ukraine
  • I. A. Opeyda Litvinenko Institute of physico-organic chemistry and coal chemistry of NAS of Ukraine
Keywords: ascorbic acid, dehydroascorbic acid, radical chain oxidation, UV spectroscopy, NMR spectroscopy

Abstract

UV-spectrophotometrically confirmed the existence of reduced, oxidized and ionic forms of ascorbic acid in solutions obtained as a result of auto-oxidation of ascorbic acid in aprotic medium and oxidation of organic substrate in the ascorbic acid presence. NMR spectroscopy showed that ascorbic acid during the inhibition of radical chain oxidation of an organic substrate in the aprotic medium at 348 K irreversibly oxidizes to dehydroascorbic acid. It has been proved that further dehydroascorbic acid oxidation with the 2,3-diketogulonic acid formation does not occur under these conditions.

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References

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Published
2017-06-26
Cited
How to Cite
Smirnova, O. V., Efimova, I. V., & Opeyda, I. A. (2017). Spectral study of ascorbic acid forms in radical chain oxidation processes in aprotic medium. Kharkiv University Bulletin. Chemical Series, (28), 53-58. https://doi.org/10.26565/2220-637X-2017-28-08