試題詳解

15. Which series of reactions described below, if any, will result in the formation of 2-methylpentan-3- one starting with 1-propanol?
(A) 1. (CH₃)₂CHMgBr； 2. dilute H₃O⁺； 3.PCC.
(B) 1. PCC； 2. (CH₃)₂CHLi； 3. dilute H₃O⁺； 4. Na₂Cr₂O₇/H₂SO₄.
(C) 1. Na₂Cr₂O₇/H₂SO₄；2.2(CH₃)₂CHMgBr, 3. dilute H₃O⁺；4.LiAIH₄.
(D) 1. Na₂Cr₂O₇/H₂SO₄； 2. SOCI₂； 3.2(CH₃)₂CHMgBr；4.H₃O+.
(E) none of the above