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प्रश्न
Write a short note on the following.
Hofmann’s bromide reaction
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उत्तर
When Amides are treated with bromine in the presence of an aqueous or ethanolic solution of KOH, primary amines with one carbon atom less than the parent amides are obtained.
\[\begin{array}{cc}
\ce{O}\phantom{............................................}\\
||\phantom{............................................}\\
\ce{\underset{\underset{(R = Alkyl (or) Aryl)}{(amide)}}{R - C - NH2} ->[Br2/KOH] \underset{(Primary amine)}{R - NH2 + K2 CO3} + KBr + H2O}
\end{array}\]
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संबंधित प्रश्न
\[\ce{CH3CH2Br ->[aq NaOH][\Delta] A ->[KMnO4/H^+][\Delta] B ->[NH3][\Delta] C ->[Br2/NaOH] D}\] ‘D’ is:
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Account for the following.
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Account for the following:
Aniline does not undergo Friedel - Crafts reaction.
Account for the following:
Aniline does not undergo Friedel – Crafts reaction.
Account for the following.
Aniline does not undergo Friedel–Crafts reaction
