試題詳解

48. Which of the following alcohols undergoes dehydration upon heating with concentrated H₂SO₄ without carbocation rearrangement?
(A) 2-methylhexan-3-ol
(B) 3-methylpentan-3-ol
(C) 3,3-dimethylpentan-2-ol
(D) 2-methyl-2-phenylpropan-1-ol
(E) both A and B