Question

Explain azo coupling reactions.

Answer 1

An azo coupling is an organic reaction between a diazonium compound and another aromatic compound that produces an azo compound. In this electrophilic aromatic substitution reaction, the aryldiazonium cation is the electrophile and the activated arene is a nucleophile.

Answer 2

Coupling reactions :

Benzene duazonium chloride reacts with electron rich aromatic compounds like phenol, aniline to form brightly coloured azo compounds.