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JEE Main 202226 JuneMorning Shift
Exam
JEE Main
Year
2022
Date
26 June
Shift
Morning Shift
Subject
Chemistry
Chapter
Amines

JEE Main 2022 · 26 June · Morning Shift · Chemistry · Amines

Among the following structures, which will show the most stable...

Among the following structures, which will show the most stable enamine formation?

(Where MeMe is −CH3- {CH}_{3})

Among the following structures, which will show the most stable enamine formation? (Where Me is - CH _ 3 )Among the following structures, which will show the most stable enamine formation? (Where Me is - CH _ 3 )Among the following structures, which will show the most stable enamine formation? (Where Me is - CH _ 3 )Among the following structures, which will show the most stable enamine formation? (Where Me is - CH _ 3 )

Options

  1. ABeCl _ 2 reacts with LiAlH _ 4 to give
  2. BBeCl _ 2 reacts with LiAlH _ 4 to give
  3. CBeCl _ 2 reacts with LiAlH _ 4 to give
  4. DBeCl _ 2 reacts with LiAlH _ 4 to give

Correct answer

C. BeCl _ 2 reacts with LiAlH _ 4 to give

Step-by-step solution

All these enamines are interconvertible through their resonating structures. So most stable form is ‘C’ due to steric factor. All of these has the equal resonance only differ in their geometrical configuration. The enamine in option C has bulky groups on opposite side of double bond. means they have the minimum repulsion between them.
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