Glyceric acid

Chemical compound From Wikipedia, the free encyclopedia

Glyceric acid refers to organic compounds with the formula HOCH2CH(OH)CO2H. It occurs naturally and is classified as three-carbon sugar acid. It is chiral. Salts and esters of glyceric acid are known as glycerates.

Quick facts Names, Identifiers ...
Glyceric acid[1]
Names
Preferred IUPAC name
2,3-Dihydroxypropanoic acid
Other names
Glyceric acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.006.795 Edit this at Wikidata
UNII
  • InChI=1S/C3H6O4/c4-1-2(5)3(6)7/h2,4-5H,1H2,(H,6,7) ☒N
    Key: RBNPOMFGQQGHHO-UHFFFAOYSA-N ☒N
  • InChI=1/C3H6O4/c4-1-2(5)3(6)7/h2,4-5H,1H2,(H,6,7)
    Key: RBNPOMFGQQGHHO-UHFFFAOYAE
  • C(C(C(=O)O)O)O
Properties
C3H6O4
Molar mass 106.08 g/mol
Appearance colorless syrup
Melting point <25 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Production

Glyceric acid is usually produced by oxidation of glycerol. A typical oxidant is nitric acid, but catalytic oxidations have been developed also:[2][3]

HOCH2CH(OH)CH2OH + O2 → HOCH2CH(OH)CO2H + H2O

As glycerol is prochiral, the oxidation of the two terminal alcohol groups gives distinct enantiomers of glyceric acid. Oxidation of both primary alcohols gives tartronic acid:

HOCH2CH(OH)CH2OH + 2 O2 → HO2CCH(OH)CO2H + 2 H2O

Biochemistry

Several phosphate derivatives of glyceric acid, including 2-phosphoglyceric acid, 3-phosphoglyceric acid, 2,3-bisphosphoglyceric acid, and 1,3-bisphosphoglyceric acid, are intermediates in glycolysis.[4] 3-Phosphoglyceric acid is an intermediate in the biosynthesis of the amino acid serine, which in turn can be used in the synthesis of glycine and cysteine.[5]

Glyceric acid occurs naturally in Populus tremula and Ardisia crenata.[6]

References

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