Question:
Name of the following reaction is
Name of the following reaction is
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Phenol + CO$_2$ (pressure) → Salicylic acid = Kolbe-Schmitt reaction
Updated On: May 1, 2026
- Reimer-Tiemann
- Kolbe-Schmitt
- Cannizzaro
- Gattermann
- Gattermann-Koch
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
Kolbe-Schmitt reaction involves the carboxylation of phenol (in the form of sodium phenoxide) using CO$_2$ under pressure to form salicylic acid.
Step 1: Reaction understanding
Phenol reacts with NaOH → sodium phenoxide: \[ C_6H_5OH + NaOH \rightarrow C_6H_5ONa \]
Step 2: Reaction with CO$_2$
\[ C_6H_5ONa + CO_2 \rightarrow o\text{-hydroxybenzoate (sodium salt)} \]
Step 3: Acidification
\[ \rightarrow \text{Salicylic acid} \]
Step 4: Identification
This sequence clearly represents Kolbe-Schmitt reaction. Final Conclusion: \[ \boxed{(B)} \]
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