Aromatic amine

An aromatic amine is an amine with an aromatic substituent - that is -NH₂, -NH- or nitrogen group(s) attached to an aromatic hydrocarbon, whose structure usually contains one or more benzene rings. Aniline is the simplest example.

Aromatic amines, when protonated, usually have lower pKa's (are more acidic) than their non-aromatic analogs. This is due to the delocalization of the lone pair of electrons from the nitrogen into the ring.

Representative anilines
Aromatic amine		CAS number	Properties	Uses
Aniline		62-53-3
o-toluidine		95-53-4
2,4,6-Trimethylaniline		88-05-1
Anisidine		90-04-0
3-Trifluoromethylaniline		98-16-8		Intermediate for herbicides, metabolite

See also

• Aromatic hydrocarbons