• 2022-07-26
    下列化合物与1,3-丁二烯发生Diels-Alder反应的活性大小顺序为:[img=347x170]1803c45babad483.png[/img]
    A: (1)>(2)>(3)>(4)
    B: (2)>(1)>(3)>(4)
    C: (1)>(2)>(4)>(3)
    D: (1)>(3)>(2)>(4)