Which of the following does not correctly characterize a nucleophilic aromatic substitution reaction?
a.
favored by electron-withdrawing groups
b.
carbanion intermediates
c.
NO2 and CHO activate the ring
d.
NO2 and CHO are o/p-directors
e.
an H atom is replaced on the ring
Question 2
Which of the following sets of substituents are all deactivating groups in electrophilic aromatic substitution reactions?
a.
Cl, CN, NO2
b.
Cl, NH2, CH3
c.
CH3, OCH3, COCH3
d.
CH3, NH2, OCH3