Ortho-para & Meta Directors in Benzene

Front

What are ortho-para directors in benzene?

Back

Ortho-para directors are substituents that direct incoming electrophiles to the ortho and para positions of the benzene ring.

Front

What are meta directors in benzene?

Back

Meta directors are substituents that direct incoming electrophiles to the meta position of the benzene ring.

Front

Give an example of an ortho-para director.

Back

An example of an ortho-para director is -OH (hydroxyl group).

Front

Give an example of a meta director.

Back

An example of a meta director is -NO2 (nitro group).

Front

How do ortho-para and meta directors affect electrophilic aromatic substitution?

Back

Ortho-para directors increase the rate of electrophilic aromatic substitution at the ortho and para positions, while meta directors decrease the rate at these positions.