Definition, Meaning & Synonyms

phenyl-group

noun

ˈfɛnɪl ɡruːp

Definition

A phenyl group is a substituent derived from benzene, consisting of a benzene ring attached to another group or atom.

Examples

The chemical structure of phenylalanine includes a phenyl group.
Many drugs have a phenyl group in their molecular structure which influences their pharmacological properties.
In the synthesis of various compounds, the phenyl group acts as a key building block.

Meaning

In organic chemistry, a phenyl group occurs when one hydrogen atom of benzene (C₆H₆) is replaced by another functional group, making it a vital part of many organic compounds.