The amine which will not undergo benzoylation in alkaline medium is
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → N,N-Dimethylaniline
Benzoylation (reaction with benzoyl chloride) occurs at the –NH₂ group of amines.
- Primary and secondary amines (–NH₂, –NHR) react readily in alkaline medium.
- Tertiary amines (–NR₂) do not undergo benzoylation because they lack a hydrogen on nitrogen.
N,N-Dimethylaniline is a tertiary amine, so it will not undergo benzoylation.