关键词: Beckmann rearrangement amidines lignin sulfuryl fluoride synthetic methods

来  源:   DOI:10.1002/chem.201905358   PDF(Sci-hub)

Abstract:
A metal-free and redox-neutral method for Beckmann rearrangement employing inexpensive and readily available SO2 F2 gas is described. The reported transformation proceeds at ambient temperature and is compatible with a wide range of sterically and electronically diverse aromatic, heteroaromatic, aliphatic and lignin-like oximes providing amides in good to excellent yields. The reaction proceeds through the formation of an imidoyl fluoride intermediate that can also be used for the synthesis of amidines.
摘要:
描述了一种使用廉价且容易获得的SO2F2气体进行贝克曼重排的无金属和氧化还原中性方法。报道的转化在环境温度下进行,并且与广泛的空间和电子多样性的芳族化合物相容,杂芳族,脂肪族和木质素样肟以良好至优异的产率提供酰胺。该反应通过形成也可用于合成脒的亚氨基酰氟中间体而进行。
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