68. Which system would give the largest ratio of substitution to elimination product(s)?
(A) cyclohexanol + acid
(B) cyclohexyl iodide + t-BuOK in t-BuOH
(C) 1-bromobutane + t-BuOK in DMSO
(D) 1-bromobutane + KI in acetone
(E) 2-bromobutane + MeONa in DMSO
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統計: A(0), B(9), C(2), D(11), E(2) #1026953
統計: A(0), B(9), C(2), D(11), E(2) #1026953