Amines — Chemistry STD 12 Science — Question

Acetylation: The process, in which acetyl group $ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{O} \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ||\\\ \ \ \ \Bigg(\text{CH}_3-\text{C}-\Bigg)$ is introduced, is called acety lation. It is done by reaction with acetyl chloride or acetic
anhydride.

Aliphatic and aromatic primary and secondary amines undergo acetylation reaction by nucleophilic substitution when treated with acid chlorides, anhydrides or esters.