SANDMEYER-GATTERMANN Aromatic Substitution

SANDMEYER GATTERMANN Aromatic substitution Substitution of an amine group via the diazonium sait by nucleophiles such as cr, Br, c. CN-R-S", HO, some via cuprous salt catalysis. 

Substitution of an aromatic amino group by fluorine via a diazonium salt using fluoroborates (compare Sandmeyer- Gattermann) (see 1st edition). 

Substitution of diazonium groups in aromatic compounds by halo or cyano groups in the presence of cuprous salts (Sandmeyer reaction), copper powder and hydrochloric or hydrobromic acid (Gattermann reaction) or cupric salts (Komer-Contardi reaction) ... 

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