• 2022-06-18
    下列化合物作为酰化剂,反应活性最强的是:
    A: [img=167x51]1802d0fb62e6653.png[/img]
    B: [img=199x56]1802d0fb6fa5021.png[/img]
    C: [img=189x55]1802d0fb7a44b39.png[/img]
    D: [img=231x47]1802d0fb8807320.png[/img]