Question:
The reaction of mesitylene and acetic anhydride in presence of aluminium trichloride is an example of:
The reaction of mesitylene and acetic anhydride in presence of aluminium trichloride is an example of:
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Aromatic ring + Anhydride + $AlCl_{3}$ = Friedel-Crafts Acylation.
Updated On: May 28, 2026
- Cannizzaro reaction
- Friedel Craft acylation
- Aldol condensation
- Kolbe reaction
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The Correct Option is B
Solution and Explanation
Step 1: Concept
The introduction of an acyl group into an aromatic ring using an acid anhydride and a Lewis acid catalyst is a specific name reaction.
Step 2: Meaning
Mesitylene (1,3,5-trimethylbenzene) is the aromatic substrate, acetic anhydride is the acylating agent, and $AlCl_{3}$ is the catalyst.
Step 3: Analysis
This setup is the classic Friedel-Crafts acylation. Cannizzaro is for aldehydes without alpha-hydrogens; Aldol is for enolizable carbonyls; Kolbe is for phenol carboxylation.
Step 4: Conclusion
Therefore, the reaction is a Friedel-Crafts acylation.
Final Answer: (B)
The introduction of an acyl group into an aromatic ring using an acid anhydride and a Lewis acid catalyst is a specific name reaction.
Step 2: Meaning
Mesitylene (1,3,5-trimethylbenzene) is the aromatic substrate, acetic anhydride is the acylating agent, and $AlCl_{3}$ is the catalyst.
Step 3: Analysis
This setup is the classic Friedel-Crafts acylation. Cannizzaro is for aldehydes without alpha-hydrogens; Aldol is for enolizable carbonyls; Kolbe is for phenol carboxylation.
Step 4: Conclusion
Therefore, the reaction is a Friedel-Crafts acylation.
Final Answer: (B)
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