試題詳解

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