在酸催化下肟重排得到醯胺的反應
反應機理
一、質子酸催化機理
二、PCl5催化
底物的離去基團都是反式遷移。
反應實例
另外有一些非正常的Beckmann重排反應,遷移片段離開底物後,得到的腈類化合物很穩定。
反應實例
參考文獻
1. Beckmann, E. Chem. Ber. 1886, 89, 988. Ernst Otto Beckmann (1853-1923) was born in Solingen, Germany. He studied chemistry and pharmacy at Leipzig. In addition to the Beckmann rearrangement of oximes to amides, his name is associated with the Beckmann thermometer, used to measure freezing and boiling point depressions to determine molecular weights. Ernst Otto Beckmann (1853-1923) 生於德國索倫根,在萊比錫大學學習化學和藥學。除了Beckmann反應,他還發明了Beckmann溫度計,是一種可準確到0.001℃的示差溫度計,可用於通過凝固點法和沸點法測量分子量。
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