A copper-catalyzed annulation reaction to access a variety of isoxazoles from alkenes and oxazete in situ generated from N-alkyl(aryl)-1-(methylthio)-2-nitroethenamine was reported. A plausible mechanism underlying the formation of the product was proposed, which represented a new approach for the construction of isoxazolines. This reaction was capable of tolerating alkenes bearing various substituents
据报道,
铜催化的环化反应可从烯烃和由N-烷基(芳基)-1-(甲
硫基)-2-硝基
乙胺生成的
草酸酯中获得各种
异恶唑。提出了一种可能的产物形成机理,它代表了
异恶唑啉的新制备方法。该反应能够耐受带有各种取代基的烯烃,这显示出相对较宽的底物范围和良好的官能团相容性。