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Question
Explain Kolbe’s reaction.
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Solution
Kolbe’s (or) Kolbe’s Schmit reaction:
In this reaction, phenol is first converted into sodium phenoxide which is more reactive than phenol towards electrophilic substitution reaction with CO2. Treatment of sodium phenoxide with CO2 at 400 K, 4-7 bar pressure followed by acid hydrolysis gives salicylic acid.
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