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MHT CET Medical202621 April 2026Evening ShiftChemistryAlcohols Phenols and EthersActual

Name the following reaction.

Options

  1. AKolbe reaction
  2. BReimer - Tiemann reaction
  3. CWolf reaction
  4. DClemmenson reaction

Correct answer

A. Kolbe reaction

Step-by-step solution

The given reaction shows sodium phenoxide reacting with carbon dioxide ( CO₂ ) at a temperature of 398 K and a pressure of 6 atm to form sodium salicylate as an intermediate. Upon subsequent acidification ( H₃O^+ ), salicylic acid (2-hydroxybenzoic acid) is formed as the major product. This specific sequence of converting phenol (via its sodium salt) into salicylic acid using CO₂ is known as the Kolbe reaction (or Kolbe-Schmitt reaction). Answer: Kolbe reaction

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