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Kolbe's Reaction

Easychemistry

Kolbe's reaction (phenol + CO₂) produces:

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About This Question

Subject
chemistry
Chapter
organic compounds containing oxygen
Topic
kolbe's reaction
Difficulty
Easy
Year
2025
Tags
Kolbe's ReactionSalicylic AcidAspirin

Solution

Correct Answer:

Salicylic acid

Kolbe's Reaction (or Kolbe-Schmitt reaction) is an industrial method for preparing hydroxy aromatic acids.

  • Process: Sodium phenoxide is heated with Carbon dioxide () under high pressure and then acidified.
  • Electrophile: The weak electrophile specifically attacks the orth-position of the highly activated phenoxide ring.
  • Product: Salicylic acid (2-Hydroxybenzoic acid).
  • This is a key precursor in the synthesis of Aspirin.

This easy difficulty chemistry question is from the chapter organic compounds containing oxygen, covering the topic of kolbe's reaction. It appeared in the 2025 exam.

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