N-(2-Vinyloxyethyl)phosphinothioamides and -phosphinoselenoamides prepared by oxidative cross-coupling of 2-vinyloxyethylamine with secondary phosphine chalcogenides undergo thermal (75–100 °C) cyclization into the corresponding 3-(diorganylchalcogenophosphoryl)-2-methyl-1,3-oxazolidines in 80–90% yields.
通过将2-
乙烯氧基
乙胺与二级膦
硫化物或膦
硒化物进行氧化交叉耦合制备的N-(2-
乙烯氧基乙基)膦
硫酰胺和膦
硒酰胺,在热(75-100 °C)条件下环化,得到相应的3-(二烷基
硫磷酰基)-2-甲基-1,3-
噁唑烷,产率为80-90%。