Question

Short note on Halogenation.

Answer 1

Answer :

Halogenation -

The process of substituting halogen over benzene ring by treatment of Benzene with Halogen ($Cl_2$ or $Br_2$) in presence of lewis acid are known as halogenation reaction.

Benzene + Chlorine $\longrightarrow$ Chloro Benzene + Hydrochloric Acid

Mechanism -

Mechanism of above reaction takes place in following three steps :

1. In this step the generation of electrophile takes place.

2. In second step, electrophile attacks over benzene ring to give a resonance stabilized carbocation.

3. In this step, resonance stabilized carbocation looses proton to give final product.

Answer 2

Hi I

The process of substituting halogen over benzene ring by treatment of Benzene with Halogen (Cl_2 or Br_2) in presence of lewis acid are known as halogenation reaction.

Hope it helps u✌✌✌