Rationalised 2023-24
211
Alcohols, Phenols and Ethers
1 Electrophilic aromatic substitution
In phenols, the reactions that take place on the aromatic ring are
electrophilic substitution reactions (Unit 9, Class XI) The –OH group
attached to the benzene ring activates it towards electrophilic
substitution Also, it directs the incoming group to ortho and para
positions in the ring as these positions become electron rich due to
the resonance effect caused by –OH group