The correct stability order of the given taut | vedclass

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(D) The given structures are tautomers of bicyclo[$2.2$.$1$]heptan$-2-$one.Structure $(II)$ is the keto form,which is generally more stable than the e

Vedclass · Accepted Answer

$II > III > I$

Vedclass · Answer

(D) The given structures are tautomers of bicyclo[$2.2$.$1$]heptan$-2-$one.Structure $(II)$ is the keto form,which is generally more stable than the enol forms $(I)$ and $(III)$.Structure $(I)$ contains a double bond at the bridgehead carbon,which violates Bredt's rule,making it highly unstable.Structure $(III)$ is a stable enol form where the double bond is not at the bridgehead.Therefore,the stability order is $(II) > (III) > (I)$.

The correct stability order of the given tautomers is:

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