Substituents on an aromatic ring can have several effects on electrophilic aroma

Question

Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively, donate or withdraw electrons through resonance, and direct substitution either to the ortho/para or to the meta positions. From the following lists, select the substituents that have the indicated property. The substituents are written as -XY, where X is the atom directly bound to the aromatic ring.

Explanation / Answer

Activation of ring OCOCH3, NHCOCH3

( electron donor group will activate aromatic ring whereas electron withdrawing group will deactivate the ring both carboxylic and sulfonic acid group will withdraw the electron density and O of acyl and N of amide will donate the electron density to the ring)

Withdraw of electrons through resonance NO2, CN

Ortho/para director CH3, Cl, NHCOCH3

Electron donors are ortho/para directors

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---