Give possible mechanism of the given reaction using carbocation rearrangement.

Carbocation Rearrangement 1

Carbocation Rearrangement 2

Find the total number of feasible products (including stereoisomers) in the following reaction. (No carbocation rearrangements is observed)

when 3-methylbutan-2-ol is treated with HBr, the following reaction takes place: Give the mechanism of this reaction. Hint : The secondary carbocation formed in step II rearranges to a more stable tetriary carbocation by a hydride ion shift form the third carbon atom.

when 3-methylbutan-2-ol is treated with HBr, the following reaction takes place: Give the mechanism of this reaction. Hint : The secondary carbocation formed in step II rearranges to a more stable tetriary carbocation by a hydride ion shift form the third carbon atom.

Reaction Mechanism : transition state - reaction intermediates, carbocation - rearrangement and hydride shift