General Mechanism
Electrophilic Aromatic Substitution of Class 12
General Mechanism
Step-1: The electrophile (E+) attacks the ring, removing a pair of electrons from the sextet to give a carbocation which is a resonance hybrid as shown in step−1. Ions of this type are called Wheland intermediate, σ− complexes or arenium ions.
Step-2: The arenium ions loses a proton from the carbon atom that bears the electrophile.
- Introduction
- General Mechanism
- Some Important Electrophilic Aromatic Substitution Reactions
- Theory Of Substituent Effects On Electrophilic Aromatic Substitution
- Classification Of Substituents
- Ortho-Para-Directing Groups
- Meta-Directing Groups
- Ortho−Para Direction And Reactivity Of Alkylbenzenes
- Summary Of Substitutent Effects On Orientation And Reactivity
- Exercise 1
- Exercise 2