試題詳解

82.Starting with benzene, the best method for preparing p-nitrobenzoic acid is:
(A) HNO₃/H₂SO₄, then CH₃CI/AICl₃, then separation of isomers, then KMnO₄/^- OH/heat, followed by H₃O⁺
(B) CH₃CI/AICl₃, then HNO₃/H₂SO₄, then separation of isomers, then KMnO₄/^-OH/heat, followed by H₃O⁺  
(C) CH₃CV/AICl₃, then KMnO₄/^-OH/heat, followed by H₃O⁺, then HNO₃/H₂SO₄
(D) HNO₃/H₂SO₄, then KMnO₄/^-OH/heat, followed by H₃O⁺, then CH₃CI/AICl₃
(E) HNO₃H₂SO₄； then CO₂, followed by H₃O⁺