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  4. Hoffmann's bromamide reaction is used to

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Q. Hoffmann's bromamide reaction is used to

J & K CETJ & K CET 2017Amines

Solution:

Hoffmann bromaraide reaction converts acid amides to primary amines :
$\underset{\text{Acid amide}}{{RCONH_{2}}}+Br_{2}+4KOH \to \underset{\text{$1^{\circ}$ amine}}{RNH_{2}}+2KBr+K_{2}CO_{3}+2H_{2}O$
The $1^{\circ}$ amine formed has one carbon atom lesser than that present in acid amide