Diarylide
Diarylide refers to a class of organic compounds characterized by the presence of two anilino groups attached to adjacent carbon atoms of a diazine ring, specifically a pyrazole or an imidazole. The general structure involves a heterocyclic ring system with two nitrogen atoms, and at positions 1 and 2, two phenyl groups attached via nitrogen atoms. These compounds are often brightly colored and have found applications primarily as organic pigments.
The synthesis of diarylides typically involves the diazotization of an aniline derivative, followed by coupling with
Diarylide yellow pigments are a significant subclass. These pigments are known for their bright, greenish-yellow shades