What is the major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide?

What is the major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide? Correct Answer Salicylic acid

Reacting the nucleophilic phenolate salt with carbon dioxide under high pressure / temperature results in regioselective ortho-substitution. This process is also known as the Kolbe-Schmitt synthesis. o-hydroxybenzoic acid is more commonly known as salicylic acid.
Bissoy MCQ

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