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KCET2013ChemistryAmines

Which one of the following gives amine on heating with amide?

Options

  1. ABr ₂ in aqueous KOH
  2. BBr ₂ on alcoholic KOH
  3. CCl ₂ in sodium
  4. Dsodium in ether

Correct answer

A. Br ₂ in aqueous KOH

Step-by-step solution

Hofmann bromamide reaction : this method is used for the preparation of any 1^ amine as well as aniline. During the reaction amide is treated with Br ₂ and alkali ( KOH ) to get primary amine. This reaction is used to descend the series in which carbon atom is removed as carbonate ion ( CO ₃²⁻ ) reaction is given as

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