Question

The reaction $Ar\stackrel{+}{N_2}C{l}^{-}\stackrel{Cu/HCl}{\to }ArCl+N_2+CuCl$ is named as:

• A. Sandmeyer reaction
• B. Gatterman reaction
• C. Claisen reaction
• D. Carbylamine reaction

Answer 1

The correct option is B Gatterman reaction

$Ar{N}_2^{+}C{l}^{-}\stackrel{Cupowder,HCl}{\to }ArCl+N_2\left(g\right)+CuCl$

Diazonium salts in the presence of copper powder and halogen acid give aryl halide.

Gattermann reaction is a variation of Sandmeyer reaction in which the $CuCl$ is replaced by $Cu$ powder.

This replacement leads to the formation of aryl halide more easily and under mild conditions than Sandmeyer reaction.

Option B is correct.