問題詳情

14. Arrange the following substrates in order of their increasing SN2 reactivity with NaCN:(I) 1-bromopentane, (II) 1-chloro-2,2-dimethylpentane, (III) 2-bromo-2-methylpentane, and(IV) 1-chloro-3,3-dimethylpentane.
(A) IV < II < I < III
(B) III < I < IV < II
(C) IV < II < III < I
(D) III < II < IV < I
(E) None of the above

參考答案

答案:D
難度:適中0.666667
統計:A(0),B(1),C(0),D(2),E(0)