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Phenylglyoxylic acid

Phenylglyoxalic acid Phenylglyoxylate

Phenylglyoxylic acid is the organic compound with the formula C6H5C(O)CO2H. The conjugate base, known as benzoylformate, is the substrate of benzoylformate decarboxylase, a thiamine diphosphate-dependent enzyme: :benzoylformate + H+ benzaldehyde + CO2 It is a colourless solid with a melting point of 64–66 °C and is moderately acidic (pKa = 2.15).

Phenylglyoxylic acid can be synthesized by oxidation of mandelic acid with potassium permanganate. An alternative synthesis involves hydrolysis of benzoyl cyanide.

References

References

  1. B. B. Corson, Ruth A. Dodge, S. A. Harris, and R. K. Hazen. (1941). "Ethyl Benzoylformate".
  2. T. S. Oakwood and C. A. Weisgerber. (1955). "Benzoylformic Acid".
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carboxylic-acids phenyl-compounds
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