Question:
Aniline does not undergo Friedel-Crafts reaction.
Friedel-Crafts is an electrophilic substitution reaction.
Aniline does not undergo Friedel-Crafts reaction.
Friedel-Crafts is an electrophilic substitution reaction.
Updated On: Apr 19, 2024
- Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
- Assertion is true but Reason is false.
- Both Assertion and Reason are false.
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The Correct Option is B
Solution and Explanation
$AlCl _{3}$ forms a salt with aniline $\left( C _{6} H _{5} NH _{2}^{+} AlCl _{3}^{-}\right)$which deactivates the benzene ring thereby preventing. Friedel-Craft reaction.
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Concepts Used:
Preparation of Amines
- Reduction of nitro compounds: Nitro compounds are reduced to amines by reduction with metals in an acidic medium or by passing them through hydrogen gas in the presence of finely divided nickel, palladium, or platinum.
- Ammonolysis of alkyl halides: Alkyl benzyl halide undergoes a nucleophilic substitution reaction while reacting with an ethanolic solution of ammonia where the halogen atom is replaced by an amino group and this process of splitting of the C-X bond by an ammonia molecule is called ammonolysis.
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- Reduction of amides: On reduction, the amides with lithium aluminum hydride yield amines.
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- Hoffmann bromamide degradation reaction: In the Hoffmann bromamide degradation reaction, the transfer of an alkyl or aryl group takes place from the carbonyl carbon of the amide to the nitrogen atom. The amine so formed, therefore, contains one carbon less than that present in the initial amine.