COMEDK · Chemistry · 29. Amines
Two statements, one Assertion and the other Reason are given. Identify the correct option
Assertion: Primary and secondary amides on treatment with \(\mathrm{Br}_2\) and alcoholic NaOH yield primary and secondary amines respectively and the reaction involves stepping down the series.
Reason: The reaction occurs due to the migration of alkyl group from Carbonyl carbon atom to the Nitrogen atom with elimination of carbonyl group as the carbonate salt.
- A Both Assertion and Reason are incorrect.
- B Both Assertion and Reason are correct.
- C Assertion is correct but Reason is incorrect.
- D Assertion is incorrect but Reason is correct.
Answer & Solution
Correct Answer
(D) Assertion is incorrect but Reason is correct.
Step-by-step Solution
Detailed explanation
The reaction described is the Hofmann bromamide degradation reaction. In this reaction, a primary amide (\(RCONH_2\)) reacts with \(Br_2\) and a strong base (like \(NaOH\) or \(KOH\)) to form a primary amine (\(RNH_2\)) with one carbon atom less than the original amide. This is…
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