Question

For reactions of ethylbenzene, the ethyl group is considered :

• A. ortho director
• B. ortho - para director
• C. meta director
• D. ortho - meta director

Answer 1

Answer: (B)

ortho - para director

Ortho - Para director:
Some groups direct the second incoming group to the ortho and para positions simultaneously. These groups are called ortho-para directors. Some common ortho-para directing groups are $Cl,-Br,-I,-OH$,$-N{H}_2,-C{H}_3,-C_2{H}_5$. This group increases electron density at ortho and para positions.