arylamiine

Arylamiine is a class of organic compounds that contain an amine group (-NH2) attached directly to an aryl ring. An aryl group is a functional group derived from an aromatic ring, such as a phenyl group (C6H5-). The simplest arylamiine is aniline, where an amino group is attached to a benzene ring. Arylamiines are also known as aromatic amines.

The properties of arylamiines are influenced by the presence of the aromatic ring. The lone pair of electrons on the nitrogen atom is partially delocalized into the pi system of the aromatic ring, making the amine group less basic than in aliphatic amines. This delocalization also affects the reactivity of the aromatic ring, making it more susceptible to electrophilic substitution, particularly at the ortho and para positions.

Arylamiines are important intermediates in the synthesis of a wide range of products, including dyes, pharmaceuticals, and polymers. For instance, aniline is a key precursor for the production of polyurethane and various azo dyes. Many pharmaceuticals also contain arylamiine structures, contributing to their biological activity. The synthesis of arylamiines often involves the reduction of nitroarenes.