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JEE Main 202225 JuneMorning Shift
Exam
JEE Main
Year
2022
Date
25 June
Shift
Morning Shift
Subject
Chemistry
Chapter
Amines

JEE Main 2022 · 25 June · Morning Shift · Chemistry · Amines

The reaction of with bromine and KOH gives RNH _ 2 as the end...

The reaction of The reaction of with bromine and KOH gives RNH _ 2 as the end product. Which one of the following is the intermediate with bromine and KOHKOH gives RNH2{RNH}_{2} as the end product. Which one of the following is the intermediate product formed in this reaction?

Options

  1. AAssertion : Use of ball bearing between two moving parts of a machine is a common practice. Reason : Ball bearing
  2. BR−NH−BrR - NH - Br
  3. CR−N=C=OR - N = C = O
  4. DAssertion : Use of ball bearing between two moving parts of a machine is a common practice. Reason : Ball bearing

Correct answer

C. R−N=C=OR - N = C = O

Step-by-step 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.

The reaction of with bromine and KOH gives RNH _ 2 as the end product. Which one of the following is the intermediate

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