Chapter 13, Problem 34P

Interpretation Introduction

Interpretation:

The structures of the acetylation products of $\text{o-}$, $\text{m-}$, and $\text{p-xylene}$ are to be written.

Concept introduction:

In Friedel-Crafts acylation, acyl halides react with aromatic compounds in the presence of a Lewis acid as a catalyst for the addition of acetyl group to the aromatic ring.

In Friedel-Crafts acylation reaction, the addition of electrophile into the aromatic pi system of the ring takes place via electrophilic aromatic substitution.

All the activating substituents have ortho, para directing effect and deactivating substituents have meta directing effect on the substituted benzene ring.