Discussion
Acetanilide is prepared by treating acetic anhydride/pyridine with
Answer: C
Acetanilide is prepared from benzenamine (aniline).
Acetylation of aniline with acetic anhydride, in the presence of pyridine to remove the acid formed, replaces one N–H hydrogen with an acetyl group: C6H5NH2 + (CH3CO)2O → C6H5NHCOCH3 + CH3COOH.
Ethanamine and methanamine would give N-alkyl acetamides, not an anilide. N-Methylaniline would give N-methylacetanilide, and N-methylethanamine an aliphatic amide.
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