Predict the major product of acid catalysed dehydration of
(i) 1-methylcyclohexanol and (ii) butan-1-ol

Explanation

(i) Acid catalysed dehydration of 1-methycyclohexanol can give two products. However, 1-methylcyclohexene will be preferably formed according to satyzeff's rule since it is more substituted.

(ii) Butan-1-ol upon acid dehydration will give but -2-ene as the major product along with but -1-ene as the minor product. actually, primary carbocation formed can either lose a `H^(+)` to form but-1-ene or may undergo rearrangement and shift to secondary carbocation, which is more stable. The latter then forms but-2-ene by losing a `H^(+)`.