Q18 / 90 · JEE Main 2022 (25 Jun Shift 1) · Chemistry

The reaction of Figure with bromine and KOH gives RNH2 as the end product. Which one of the following is the intermediate product formed in this reaction?

  • A
    Figure
  • B
    R-NH-Br
  • Correct answer
    C
    R-N=C=O
  • D
    Figure

Solution

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.

Figure

Hence, the correct answer is option: 'C'.

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