試題詳解

23. Which sequence ranks the following aromatic rings of this compound in order of increasing reactivity in an electrophilic aromatic substitution reaction (slowest to fastest reacting)? 
(A) 3 < 2 < 1
(B) 2 < 3 < 1
(C) 2 < 1 < 3
(D) 1 < 3 < 2
(E) 1 < 2 < 3