Polysubstitution is a major drawback in:
Show Hint
- Reimer Tiemann reaction
- Friedel Craft's alkylation
- Acetylation of aniline
- Friedel Craft's acylation
The Correct Option is B
Solution and Explanation
Hence further alkylation occurs readily and a mixture of poly-alkylated products is obtained.
In Friedel-Crafts acylation the acyl group is electron-withdrawing and deactivates the ring, so polysubstitution does not occur.
Acetylation of aniline gives acetanilide (mono N-acylation), and the Reimer-Tiemann reaction gives mainly mono (ortho) formylation.
Answer: (2) Friedel Craft's alkylation
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