Question:
What represents the best method for producing salicylic acid?
What represents the best method for producing salicylic acid?
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Phenol + CO$_2$ → salicylic acid (important named reaction).
Updated On: Apr 23, 2026
- Benzoic acid, strong base, high temperature
- Toluene, strong base, water, high temperature
- Phenol, base, carbon dioxide then acid
- Bromobenzene, carbonic acid, high temperature
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The Correct Option is C
Solution and Explanation
Concept:
Kolbe–Schmitt reaction.
Step 1: Phenol reacts with base to form phenoxide ion.
Step 2: Phenoxide reacts with CO$_2$ (under pressure).
Step 3: Forms sodium salicylate.
Step 4: Acidification gives salicylic acid.
Conclusion:
Best method = Kolbe reaction
Step 1: Phenol reacts with base to form phenoxide ion.
Step 2: Phenoxide reacts with CO$_2$ (under pressure).
Step 3: Forms sodium salicylate.
Step 4: Acidification gives salicylic acid.
Conclusion:
Best method = Kolbe reaction
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