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Question

(B) The reaction involves the acid-catalyzed dehydration of cyclopenta$-2,4-$dienylmethanol. $1$. Protonation of the $-OH$ group followed by the loss

Vedclass · Accepted Answer

Benzene

Vedclass · Answer

(B) The reaction involves the acid-catalyzed dehydration of cyclopenta$-2,4-$dienylmethanol. $1$. Protonation of the $-OH$ group followed by the loss of $H_2O$ generates a carbocation at the exocyclic carbon. $2$. This carbocation undergoes a ring expansion rearrangement to form a more stable aromatic benzene ring. $3$. Finally,the loss of a proton $(H^+)$ yields benzene as the final product $(A)$.

The product $(A)$ is:

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