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Catalysis Letters

, Volume 46, Issue 3–4, pp 195–199 | Cite as

Catalytic oxidation with air of tartronic acid to mesoxalic acid on bismuth-promoted platinum

  • P. Fordham
  • M. Besson
  • P. Gallezot
Article

Abstract

Mesoxalic acid (ketomalonic acid) was prepared by oxidative dehydrogenation with air of tartronic acid in aqueous solution on carbon-supported platinum-bismuth catalysts. By increasing the pH, using a higher catalyst/substrate ratio or increasing the temperature, higher yields could be obtained (maximum yield obtained of 65% at 80% conversion). The results obtained for this reaction and for the analogous catalytic oxidations of glyceric acid to hydroxypyruvic acid, and lactic acid to pyruvic acid, enabled a general reaction mechanism to be proposed for the selective oxidation of α-hydroxy acids to α-keto acids on platinum-bismuth catalysts.

Keywords

Oxalic Acid Catalytic Oxidation Pyruvic Acid Hydroxy Acid Oxidative Dehydrogenation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • P. Fordham
  • M. Besson
  • P. Gallezot

There are no affiliations available

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