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Write the Dehydration and ring expansion mechanism of following alcohol:



This reaction proceed via carbocation  intermediate  formation and ring expansion in which  a molecule of water is lost in presence of concentrate Sulphuric acid. The initially formed primary carbocation rearranges to more stable secondary carbocation which results in ring expansion.


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Write Dehydration and ring expansion mechanism of 1-cyclobutylethanol in the presence of con H2SO4.

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