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Topic: Amines: nomenclature, classification, structure, preparation· Organic Compounds Containing Nitrogen

Given below are two statements:Statement I : Aniline does not undergo Friedel-Crafts alkylation reaction.Statement II : Aniline cannot be prepared through Gabriel synthesis.In the light of the above statements, choose the correct answer from the opti…

Given below are two statements:

Statement I : Aniline does not undergo Friedel-Crafts alkylation reaction.

Statement II : Aniline cannot be prepared through Gabriel synthesis.

In the light of the above statements, choose the correct answer from the options given below:

1. Statement I is incorrect but Statement II is true.

2. Both Statement I and Statement II are true.

3. Both Statement I and Statement II are false.

4. Statement I is correct but Statement II is false.

1 answer

Best answer

Answer: 2. Both Statement I and Statement II are true.

Key idea: the \(\mathrm{-NH_2}\) group of aniline is basic and reacts with Lewis acids; Gabriel synthesis works only for primary alkyl halides.

  • Statement I is true. \(\mathrm{AlCl_3}\) forms a salt with the lone pair on N, so the ring gets a positive charge and is deactivated. Friedel-Crafts fails.
  • Statement II is true. Gabriel synthesis needs an \(\mathrm{S_N2}\) attack of phthalimide anion on an alkyl halide. Aryl halides do not undergo this, so aromatic amines cannot be made.

Both are true, option 2.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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