The given reaction follows Hoffman bromamide degradation mechanism for the preparation of primary amines. In this reaction alkyl or aryl isocynate is formed as an intermediate. The formation of intermediate is shown below.
JEE Main 2022 — Chemistry Organic Chemistry
2022mcqhard
The reaction of 
with bromine and KOH gives RNH2 as the end product. Which one of the following is the intermediate product formed in this reaction?
Official previous-year question
Held on 25 Jun 2022 · Verified 6 Jul 2026.
Options
- A
- B
R−NH−Br
- C
R−N=C=O
- D
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