English

Noun

1. Any univalent organic radical derived from an aromatic hydrocarbon by removing a hydrogen atom.

Translations

See also

• alkyl

This article is about the aryl organic functional group. For the biological gene, see Aryl hydrocarbon receptor. For the fleshy covering of certain seeds, see aril.

In the context of organic molecules, aryl refers to any functional group or substituent derived from a simple aromatic ring, may it be phenyl, thiophenyl, indolyl, etc (see IUPAC nomenclature). "Aryl" is used for the sake of abbreviation or generalization.

A simple aryl group is phenyl, C6H5; it is derived from benzene. The tolyl group, CH3C6H4, is derived from toluene (methylbenzene). The xylyl group, (CH3)2C6H3, is derived from xylene (dimethylbenzene).

Biaryls may display axial chirality.

See also

• Alkyl
• Aromatic hydrocarbon
• Aromaticity
• Heterocycle