問題詳情

68. Which reaction sequence is required to accomplish the following transformation?OO?

 I. heat II. NaOH, heat, then HCl, H2O III. NaOH IV. CH3COCH2CO2Et, EtONa
(A) I → II → III → IV
(B) IV → II → I → III
(C) III → VI → II → I
(D) II → IV → III → I
(E) None of the above

參考答案

答案：B
難度：適中0.642857
統計：A(0),B(9),C(2),D(1),E(0)

用户評論

【菩提】評論

標準答案更正為B