Phenylpyruvic acid

Chemical compound From Wikipedia, the free encyclopedia

Phenylpyruvic acid

Phenylpyruvic acid is the organic compound with the formula C6H5CH2C(O)CO2H. It is a keto acid.

Quick Facts Names, Identifiers ...
Phenylpyruvic acid
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Names
Preferred IUPAC name
2-Oxo-3-phenylpropanoic acid
Other names
Phenylpyruvate; 3-Phenylpyruvic acid; Keto-phenylpyruvate; beta-Phenylpyruvic acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.005.317
UNII
  • InChI=1S/C9H8O3/c10-8(9(11)12)6-7-4-2-1-3-5-7/h1-5H,6H2,(H,11,12) N
    Key: InChIKey=BTNMPGBKDVTSJY-UHFFFAOYSA-N N
  • c1ccccc1CC(=O)C(=O)O
Properties
C9H8O3
Molar mass 164.160 g·mol−1
Melting point 155 °C (311 °F; 428 K) (decomposes)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Occurrence and properties

The compound exists in equilibrium with its (E)- and (Z)-enol tautomers.[citation needed] It is a product from the oxidative deamination of phenylalanine.

When the activity of the enzyme phenylalanine hydroxylase is reduced, the amino acid phenylalanine accumulates and gets converted into phenylpyruvic acid (phenylpyruvate), which leads to 'Phenylketonuria (PKU)' instead of 'tyrosine' which is the normal product of phenylalanine hydroxylase.

Preparation and reactions

It can be prepared by many methods. Classically it is produced from aminocinnamic acid derivatives.[1] It has been prepared by condensation of benzaldehyde and glycine derivatives to give phenylazlactone, which is then hydrolyzed with acid- or base-catalysis.[2] It can also be synthesized from benzyl chloride by double carbonylation.[3][4]

Reductive amination of phenylpyruvic acid gives phenylalanine.

See also

References

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