![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/L-Phenylalanin_-_L-Phenylalanine.svg/640px-L-Phenylalanin_-_L-Phenylalanine.svg.png&w=640&q=50)
Phenylpropanoid
From Wikipedia, the free encyclopedia
The phenylpropanoids are a diverse family of organic compounds that are biosynthesized by plants from the amino acids phenylalanine and tyrosine in the shikimic acid pathway.[1] Their name is derived from the six-carbon, aromatic phenyl group and the three-carbon propene tail of coumaric acid, which is the central intermediate in phenylpropanoid biosynthesis. From 4-coumaroyl-CoA emanates the biosynthesis of myriad natural products including lignols (precursors to lignin and lignocellulose), flavonoids, isoflavonoids, coumarins, aurones, stilbenes, catechin, and phenylpropanoids.[2] The coumaroyl component is produced from cinnamic acid.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/4-Coumaroyl-CoA.svg/640px-4-Coumaroyl-CoA.svg.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/L-Phenylalanin_-_L-Phenylalanine.svg/150px-L-Phenylalanin_-_L-Phenylalanine.svg.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/4/40/L-Tyrosin_-_L-Tyrosine.svg/150px-L-Tyrosin_-_L-Tyrosine.svg.png)
Phenylpropanoids are found throughout the plant kingdom, where they serve as essential components of a number of structural polymers, provide protection from ultraviolet light, defend against herbivores and pathogens, and also mediate plant-pollinator interactions as floral pigments and scent compounds.