They can also be classified on the basis of their number of phenol groups. They can therefore be called simple phenols or monophenols, with only one phenolic group, or di- (bi-), tri-and oligophenols, with two, three or several phenolic groups respectively.
https://en.wikipedia.org/wiki/Phenols
Phenolic compounds distributed in almost all plants and subject a great number of chemical, biological, agricultural, and medical studies. Two main phenolic compounds which present in plants are hydroxybenzoic and hydroxycinnamic acids.
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In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of a hydroxyl group (— O H) bonded directly to an aromatic hydrocarbon group. The simplest of the class is phenol, which is also called carbolic acid C 6H 5OH.
https://en.wikipedia.org/wiki/Phenols
A class of chemical compounds in organic chemistry which consist of a hydroxyl group (-OH) directly bonded to an aromatic hydrocarbon group is known as phenols or phenolics. The first member of this class is phenol (C 6 H 5 OH) commonly called as carbolic acid.
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Phenols can have two or more hydroxy groups bonded to the aromatic ring(s) in the same molecule. The simplest examples are the three benzenediols, each having two hydroxy groups on a benzene ring.
https://en.wikipedia.org/wiki/Phenols
Antioxidant action of phenolic compounds is due to their high tendency to chelate metals. Phenolics possess hydroxyl and carboxyl groups, able to bind particularly iron and copper [10]. The roots of many plants exposed to heavy metals exude high levels of phenolics [39].
http://www.pjoes.com/pdf/15.4/523-530.pdf
Generally phenolic compounds have strong antiseptic and antibacterial properties and act as nerve stimulants and immunostimulants. They can cause hepatotoxicity as well as irritating for the skin. Some other phenolic compounds with their uses and structures are as follows.
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Although similar to alcohols, phenols have unique properties and are not classified as alcohols (since the hydroxyl group is not bonded to a saturated carbon atom). They have higher acidities due to the aromatic ring's tight coupling with the oxygen and a relatively loose bond between the oxygen and hydrogen.
https://en.wikipedia.org/wiki/Phenols
Some external mechanisms that limit the uptake of metals by roots can help plants tolerate a certain amount of toxic metal in soil. One of them is the formation of non-toxic metal-ligand chelates in rhizosphere involving organic acids and other substances exuded from roots.
http://www.pjoes.com/pdf/15.4/523-530.pdf
Phenolic compounds have potential against oxidative damages diseases, therefore play a protective role through ingestion of fruits and vegetables. These compounds are very much essential for the growth of plant and involve in reproduction process of plants.
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where do phenolic compounds act?
Phenolic compounds act in plants. Phenolic compounds are act in plants.