Question

What will be the product obtained as a result of the following reaction and why?

Answer 1

Friedel craft alkylation:

When benzene reacts with propyl chloride in the presence of anhydrous $AlC{l}_3$ which acts as a Lewis acid, it is called as Friedel Craft Alkylation.

So, the following reaction takes place as given below



Propyl chloride forms $C{H}_3–C{H}_2–C{H}_2^{+}$ with anhydrous $AlC{l}_3$ which is less stable. This rearranges to a more stable secondary carbocation via $1,2$-hydride shift as:


Finally, the secondary carbocation undergo electrophilic substitution with benzene to given isopropyl benzene as the final product.