Question:
Identify the major product formed from the following reaction sequence
Identify the major product formed from the following reaction sequence
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Kolbe-Schmitt reaction converts sodium phenoxide into salicylic acid after reaction with \(CO_2\) followed by acidification.
Updated On: Jun 25, 2026
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The Correct Option is B
Solution and Explanation
Step 1: Formation of sodium phenoxide.
Phenol reacts with aqueous sodium hydroxide to form sodium phenoxide: \[ C_6H_5OH+NaOH\rightarrow C_6H_5ONa+H_2O \]
Step 2: Reaction with \(CO_2\).
Sodium phenoxide reacts with carbon dioxide under Kolbe-Schmitt reaction conditions.
The electrophilic substitution mainly occurs at the ortho position due to activation by: \[ -O^- \] This forms sodium salicylate.
Step 3: Acidification.
On treatment with: \[ H_3O^+ \] sodium salicylate gets converted into salicylic acid: \[ o\text{-Hydroxy benzoic acid} \]
Step 4: Final conclusion.
Hence, the major product formed is \[ \boxed{o\text{-Hydroxy benzoic acid}} \]
Phenol reacts with aqueous sodium hydroxide to form sodium phenoxide: \[ C_6H_5OH+NaOH\rightarrow C_6H_5ONa+H_2O \]
Step 2: Reaction with \(CO_2\).
Sodium phenoxide reacts with carbon dioxide under Kolbe-Schmitt reaction conditions.
The electrophilic substitution mainly occurs at the ortho position due to activation by: \[ -O^- \] This forms sodium salicylate.
Step 3: Acidification.
On treatment with: \[ H_3O^+ \] sodium salicylate gets converted into salicylic acid: \[ o\text{-Hydroxy benzoic acid} \]
Step 4: Final conclusion.
Hence, the major product formed is \[ \boxed{o\text{-Hydroxy benzoic acid}} \]
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