Question

Question: Draw a stepwise, detailed mechanism for the following reaction.

Short answer

Answer

The mechanism of the reaction is as shown below.

Step-by-step solution

Step-by-Step SolutionStep 1: Stability of carbocation

During the (unimolecular) reaction, the most stable carbocation intermediate will be formed if the rearrangement of alkyl shift or hydride shift does not lead to the formation of the most stable carbocation

The mechanism of the given reaction

This reaction takes place in the presence of a sulfuric acid catalyst.

The secondary carbocation becomes the most stable $3°\mathrm{carbocation}$due to the alkyl shift. Then, will be eliminated, and it leads to the formation of the respective alkene

Mechanism of the reaction