Question
help plase with this organic chemistry 2 question? Ch:12
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. Activation of the ring towards substitution. -COOH -OCOCH3 -NH2 -Br Withdrawal of electrons through resonance. -NO2 -CH3 -OH -SO3H Ortho/para-directed substitution. -COOH -CN -NHCOCH3 -Cl -OCOCH3
Explanation / Answer
Activation : OCOCH3, NH2
Withdrawl by resonance : NO2, SO3H
o-p directed : NHCOCH3,Cl,OCOCH3
