--Mechanism Of Aromatic Electrophilic Substitution Reactions--
The Aromatic Ring has a planar structure with a closed conjugation.It has pi-electrons which are mobile.
When the electrophile approaches the aromatic ring,the electrons are displaced.The structure gets charged due to electromeric/mesomeric effect.
This leads to the formation of a
pi-complex.[?]
Formation of a complex is followed by the formation of Sigma Complex.The Sigma Complex is stable due to resonance taking place.
The Attacking Groups can be classified as,
- Activating Groups