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NEETChemistryAlcohols Phenols and Ethers

Explain why Lewis acid is not required in bromination of phenol?

Options

  1. APhenol is a stronger electrophile than bromine.
  2. BLewis acid is an electron deficient molecule. In bromination of benzene, Lewis acid is used to polarize Br 2 t
  3. CPhenol is a strong Lewis base that can neutralize any added Lewis acid.
  4. DBromine is a weaker nucleophile and doesn't require a Lewis acid.

Correct answer

B. Lewis acid is an electron deficient molecule. In bromination of benzene, Lewis acid is used to polarize Br 2 t

Step-by-step solution

Correct Option is : (B) Lewis acid is an electron deficient molecule. In bromination of benzene, Lewis acid is used to polarize Br 2 to form Br + electrophile.In case of phenol, the oxygen atom of phenol itself polarizes the bromine molecule to form Br + ion (electrophile). So, Lewis acid is not required in the bromination of phenol.

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