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Aspirin is produced by acetylation of which compound?

1. p-dihydroxybenzene
2. o-hydroxybenzoic acid
3. o-dihydroxybenzene
4. m-hydroxybenzoic acid

Correct answer: o-hydroxybenzoic acid

Solution

Aspirin (acetylsalicylic acid) is formed by acetylating the phenolic -OH of salicylic acid, which is o-hydroxybenzoic acid.

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