[討論] 有機化學疑惑
我查了Clayden 2th 上面寫NH3是hard Nu
但是有沒有人知道它為什麼在做a, b-unsaturated carbonyl攻擊的選擇上反而是1,4add
,攻打soft E+的位置呢?
http://i.imgur.com/BJ4UWjw.jpg

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