Substituents on an aromatic ring can have several effects on electrophilic aroma
ID: 941075 • Letter: S
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 the ring towards substitution :
-NHCOCH3, -OCOCH3,
Withadrawl of electrons through resonance :
-COOH, -CN
Ortho/Para directed substitution :
-NHCOCH3, -F , -CH3, -Br