Question:
Identify substrate ' \(A\) ' in the following reaction.
\(\mathrm{A}+\mathrm{CO}_2 \xrightarrow[6 \text { atm }]{398 \mathrm{~K}}\) Sodium salicylate \(\xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}}\)Salicylic acid
Identify substrate ' \(A\) ' in the following reaction.
\(\mathrm{A}+\mathrm{CO}_2 \xrightarrow[6 \text { atm }]{398 \mathrm{~K}}\) Sodium salicylate \(\xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}}\)Salicylic acid
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Sodium phenoxide reacts with carbon dioxide under pressure and heat to give sodium salicylate.
Updated On: Nov 13, 2026
- Phenol
- Sodium phenoxide
- Salicylaldehyde
- o-Phenolsulphonic acid
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
This is the Kolbe-Schmitt reaction, which carboxylates the ortho position of a phenoxide ion.
Step 2: Reaction
\(\text{C}_6\text{H}_5\text{ONa}+\text{CO}_2\xrightarrow{398\text{ K},\,6\text{ atm}}\text{sodium salicylate}\xrightarrow{\text{H}_3\text{O}^+}\text{salicylic acid}\)
Step 3: Result
The substrate A is sodium phenoxide, option (B).
Final Answer:
Substrate A is sodium phenoxide. \[ \boxed{\text{(B) }\text{Sodium phenoxide}} \]
This is the Kolbe-Schmitt reaction, which carboxylates the ortho position of a phenoxide ion.
Step 2: Reaction
\(\text{C}_6\text{H}_5\text{ONa}+\text{CO}_2\xrightarrow{398\text{ K},\,6\text{ atm}}\text{sodium salicylate}\xrightarrow{\text{H}_3\text{O}^+}\text{salicylic acid}\)
Step 3: Result
The substrate A is sodium phenoxide, option (B).
Final Answer:
Substrate A is sodium phenoxide. \[ \boxed{\text{(B) }\text{Sodium phenoxide}} \]
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