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NEETChemistryAmines

Consider the following statements regarding the Hoffmann bromamide degradation reaction: I. The reaction is applicable for the preparation of both primary and secondary amines. II. The amine formed contains one carbon atom less than that present in the parent amide. III. It involves the migration of an alkyl or aryl group from the carbonyl carbon to the nitrogen atom. IV. Four moles of NaOH and one mole of B r₂ are c

Options

  1. AOnly one
  2. BOnly two
  3. COnly three
  4. DAll four

Correct answer

C. Only three

Step-by-step solution

Statement I is incorrect because the Hoffmann bromamide degradation reaction is used for the preparation of primary amines only. Statement II is correct as the carbonyl carbon of the amide is lost as a carbonate ion, resulting in an amine with one carbon atom less than the parent amide. Statement III is correct because the reaction mechanism involves the migration of an alkyl or aryl group from the carbonyl carbon to the electron-deficient nitrogen atom. Statement IV is correct as per the balanced chemical equation

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