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(B) The reaction involves the acid-catalyzed dehydration of cyclobutylmethanol. $1$. Protonation of the hydroxyl group occurs to form a good leaving g

Vedclass · Accepted Answer

$1-$Methylcyclobutene

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(B) The reaction involves the acid-catalyzed dehydration of cyclobutylmethanol. $1$. Protonation of the hydroxyl group occurs to form a good leaving group $(-OH_2^+)$. $2$. Loss of water generates a primary carbocation (cyclobutyl-methyl cation). $3$. This primary carbocation undergoes a ring expansion rearrangement to form a more stable five-membered ring (cyclopentyl cation). $4$. Loss of a proton from the cyclopentyl cation yields cyclopentene as the major product. Note: The provided options do not include cyclopentene. Among the given structures,if we assume the question implies a rearrangement leading to a more stable alkene,the most stable product formed from such rearrangements is typically cyclopentene.

What is the major product in the given reaction?

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