Oxychlorination of alkenyl oximes is harder compared to the analogous oxybromination or oxyiodination because of the difficulty associated with the formation of chlorine cations or radicals. A transition-metal-free oxychlorination of alkenyl oximes has been developed, using t-BuONO as a dual oxidant and AlCl3 as a chlorine source. This convenient and practical method has been used to construct chloroisoxazolines
与类似的氧
溴化或氧
碘化相比,烯基
肟的氧
氯化更难,因为与形成
氯阳离子或自由基有关的困难。已经开发出一种无过渡
金属的烯基
肟的氧
氯化方法,该方法使用t -BuONO作为双氧化剂,并使用AlCl 3作为
氯源。这种方便实用的方法已被用于以中等至良好的产率构建
氯异恶唑啉,而N-
氯代琥珀
酰亚胺(
NCS)未能促进该反应。