試題詳解

22. Which reaction condition could NOT give the indicated product in the following scheme? 
(A) POCl₃, pyridine
(B) KMnO₄, H₃O⁺
(C) CH₃CH₂OH, H⁺
(D) Na^{+ －}OEt, then CH₃MgBr
(E) H₃O⁺ , heat