Question

The reaction: \[ \text{ArN}^{+} \text{Cl}^{-} \xrightarrow{\text{Cu/HCl}} \text{ArCl} + N_2 + \text{CuCl} \] is called as:

• A. Sandmeyer reaction
• B. Gattermann reaction
• C. Claisen reaction
• D. Carbamylamine reaction

Hint:

The Sandmeyer reaction is a widely used reaction for halogenating aromatic compounds, especially for preparing aryl halides.

Answer 1

The Correct Option is A

The given reaction is an example of the Sandmeyer reaction, a reaction in which aryl diazonium salts undergo substitution with halides (such as chloride or bromide) in the presence of copper and hydrochloric acid. This is a classic method for preparing aryl halides from aryl diazonium salts. Thus, the correct answer is option (A).