Amides hydrolyze in acidic media, under heating, forming amines and carboxylic acids.

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Ethanamide hydrolyzes in a sulfuric medium to form ethanoic acid .
The reaction mechanism occurs in the following steps:

Stage 1. Protonation of carbonyl oxygen.

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Stage 2. Nucleophilic attack of water on the carbonyl carbon

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Stage 3. Deprotonation of water and protonation of the amino group.

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Stage 4. Elimination of ammonia

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Step 5. Deprotonation of carbonyl oxygen

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