Ncert Exercises & Solutions

Q. 46 Write steps to carry out the conversion of phenol to aspirin.

Aspirin can be prepnteel by the reaction af ralieylic acid with acetic anhydride. Salicylic acid is prepared by the reaction of phenol with

{CO}_{2}

and NaOH.

This process is known as Kolbe's reaction. The product salicylic acid is used in the preparation of aspirin. After wards, when salicylic acid is treated with acetic anhydride then acetyl group replaces the hydrogen of — OH group i.e., acetylation occurs at — OH group of salicylic acid. Reaction is as follows

ncert-exemplar-problems-class-12-chemistry-alcohols-phenols-ethers-42

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