Question:
In keto-enol tautomerism of dicarbonyl compounds, the enol-form is preferred in contrast to the keto-form, this is due to
In keto-enol tautomerism of dicarbonyl compounds, the enol-form is preferred in contrast to the keto-form, this is due to
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Enol forms are stabilized by resonance, which makes them more favored in some tautomeric equilibria.
Updated On: Jan 12, 2026
- presence of carbonyl group on each side of \( \text{C} = C \) group
- resonance stabilization of enol form
- presence of methylene group
- rapid chemical exchange
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The Correct Option is B
Solution and Explanation
In keto-enol tautomerism, the enol form is stabilized by resonance between the lone pair of electrons on oxygen and the C=C bond. This makes the enol form more stable than the keto form, which lacks this resonance stabilization.
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