4-hydroxymandelate Oxidase
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4-Hydroxymandelic acid is a
chemical compound A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element ...
used to synthesize
atenolol Atenolol is a beta blocker medication primarily used to treat high blood pressure and angina, heart-associated chest pain. Although used to treat high blood pressure, it does not seem to improve mortality rate, mortality in those with the condi ...
. The compound typically occurs as a
monohydrate In chemistry, a hydrate is a substance that contains water or its constituent elements. The chemical state of the water varies widely between different classes of hydrates, some of which were so labeled before their chemical structure was understo ...
.


Synthesis and occurrence

It is produced from 4-hydroxypyruvic acid by the action of the enzyme (''S'')-''p''-hydroxymandelate synthase: :HOC6H4CH2C(O)CO2H + O2 → HOC6H4CH(OH)CO2H + CO2 4-Hydroxymandelic acid can be synthesized by the condensation reaction of
phenol Phenol (also known as carbolic acid, phenolic acid, or benzenol) is an aromatic organic compound with the molecular formula . It is a white crystalline solid that is volatile and can catch fire. The molecule consists of a phenyl group () ...
and
glyoxylic acid Glyoxylic acid or oxoacetic acid is an organic compound. Together with acetic acid, glycolic acid, and oxalic acid, glyoxylic acid is one of the C2 carboxylic acids. It is a colourless solid that occurs naturally and is useful industrially. Str ...
: :HOC6H5 + CHOCO2H → HOC6H4CH(OH)CO2H


See also

*
Vanillyl mandelic acid Vanillylmandelic acid (VMA) is a chemical intermediate in the synthesis of artificial vanilla flavorings and is an end-stage metabolite of the catecholamines (epinephrine, and norepinephrine). It is produced via intermediary metabolites. Chemical ...
* 4-Hydroxyphenylacetic acid


References

{{DEFAULTSORT:Hydroxymandelic acid, 4- 4-Hydroxyphenyl compounds Acetic acids Alpha hydroxy acids