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.
JEE Main 2022 — Chemistry Organic Chemistry
2022mcqmedium
Among the following structures, which will show the most stable enamine formation?
(Where Me is −CH3)
Official previous-year question
Held on 26 Jun 2022 · Verified 6 Jul 2026.
Options
- A
- B
- C
- D
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