Question

Starting from aniline how will you prepare benzene diazonium chloride and chlorobenzene from the later? Explain giving chemical reactions involved.

Answer 1

Diazotization of Aniline with $NaN{O}_2/HCl$ gives Benzene diazonium chloride. Sandmeyer reaction converts benzene diazonium chloride to chlorobenzene. This reaction is carried out in presence of $Cu+HCl$.