Home > Community > What is the most stable structure amongst the keto-enol tautomers of pentane-2,4-dione?
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+ Resonance
+ Tautomer
+ Chemistry
+ Stability
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Pascal Morimacil

What is the most stable structure amongst the keto-enol tautomers of pentane-2,4-dione?

Bob Smurdly  Follow

The compound in option (c) is highly stable because it forms a 6 membered ring by tautomerism and that ring is highly stable because all bonds in that ring have developed partial double character. Whereas in option (d) there is ring formation but only two bonds of that ring have partial double character. This makes (c) more stable than (d).

enter image description heretautomers of pentan-2,4-dione

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