問題詳情
20. Starting with benzene, the best method for preparing para-nitrobenzoic acid is:
(A) HNO3/H2SO4； then CH3CI/AlCl3； 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 H30t.
(C) CH3CI/AICl3； then KMn04/-OH/heat, followed by H3O+； then HNO3/H2SO4.
(D) HNO3/H2SO4； then KMnO4/-OH/heat, followed by H3O+； then CH3CI/AICl3.
(E) HNO3/H2SO4； then CO2, followed by H3O+.
參考答案
答案：B
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中