Chapter 19, Problem 19.45P

Interpretation Introduction

Interpretation: The compound $p\text{-}$ methylthiophenol more or less reactive in electrophilic aromatic substitution than phenol is to be identified.

Concept introduction: The electron withdrawing or electron releasing groups have a significant role in the activation and deactivation of benzene rings during an electrophilic aromatic substitution reaction. An electron withdrawing group deactivates the benzene rings by reducing the electron density on the rings.The electrophilic groups tend to accept or withdraw the electrons from the rest of the compound.The deactivating groups are those groups that tend to withdraw the electron density from the benzene ring and decrease the overall rate of reactions.