Sandmeyer Reactions Definition:

Reactions that utilize copper salts (CuX) and enable the installation of a halogen or a cyano group on an aromatic ring.

Sandmeyer Reactions Explained:

A chemical reaction that is used to synthesize aryl halides from aryl diazonium salts. The reaction happens by means of substitution of aromatic amino group through preparation of the diazonium salt which then proceeds to the displacement with a necleophile.