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NTA Abhyas JEE Main2020ChemistryAminesPractice

Acetamide is treated separately with the following reagents. Which one of these would give methylamine?

Options

  1. AP C l 5
  2. BB r 2 and N a O H
  3. CP 4 O 10
  4. DL i A l H 4

Correct answer

B. B r 2 and N a O H

Step-by-step solution

This is a case of Hofmann reaction: The Hofmann bromamide is the organic reaction of conversion of a primary amide to a primary amine with one fewer carbon atom. CH 3 CONH 2   +   Br 2   +   4   NaOH → CH 3 NH 2   +   Na 2 CO 3   +   2   NaBr   +   2   H 2 O

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