Question
Explain the following reaction with a suitable example.
Gatterman reaction
Gatterman reaction
✓
Answer
In this reaction, arene diazonium salts undergo a nucleophilic substitution reaction. The reaction involves displacement of the diazo group by the – Cl/– Br atom. The reaction can be represented as,
$Ar - N _2^{+} X ^{-} \underset{HX}{\stackrel{\text { Cu powder }}{\stackrel{}{\longrightarrow}}} Ar - X + N _2( X =- Cl ,- Br )$
e.g. Preparation of chlorobenzene from benzene diazonium chloride.
$Ar - N _2^{+} X ^{-} \underset{HX}{\stackrel{\text { Cu powder }}{\stackrel{}{\longrightarrow}}} Ar - X + N _2( X =- Cl ,- Br )$
e.g. Preparation of chlorobenzene from benzene diazonium chloride.
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