A facile strategy for the synthesis of isoxazoles has been efficaciously developed, which involves oxidation of propargylamines to the corresponding oximes followed by CuCl-mediated intramolecular cyclization of the latter. This protocol shows a straightforward way to construct a series of isoxazole cores with a wide range of functional group compatibility. Meanwhile, a gram-scale experiment and synthetic applications can be successfully operated.

中文翻译：

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炔丙胺通过一锅氧化/环化序列合成异恶唑

已经有效地开发了一种合成异恶唑的简便策略，该策略包括将炔丙基胺氧化成相应的肟，然后由 CuCl 介导的后者分子内环化。该协议显示了一种构建一系列具有广泛官能团兼容性的异恶唑核心的简单方法。同时，可以成功进行克级实验和合成应用。