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An Efficient and Versatile One-Pot Beckmann Rearrangement of Ketoximes Using Mesitylenesulfonyl Chloride
作者:Yong-Tae Park、Chennan Ramalingan
DOI:10.1055/s-2008-1042948
日期:2008.5
acyclic ketoximes in the presence of lithium hydroxide in tetrahydrofuran, efficiently rearrange into their corresponding lactams and amides. The stereo-chemistry of diazepan-5-one lactams resulting from the rearrangement of heterocyclic ketoximes (piperidin-4-one oximes), has been deduced based on one- and two-dimensional NMR analyses. The seven-membered heterocyclic ring of the product lactams adopts chair
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