A Pd-catalyzed relatively general Michaelis–Arbuzov reaction of triaryl phosphites and aryl iodides for preparing useful aryl phosphonates was developed. Interestingly, water can greatly facilitate the reaction through a water-participating phosphonium intermediate rearrangement process, which also makes the reaction conditions rather mild. In comparison with the known methods, this reaction is milder
开发了一种 Pd 催化的相对通用的
亚磷酸三芳基酯和芳基
碘化物的 Michaelis-Arbuzov 反应,用于制备有用的芳基
膦酸酯。有趣的是,
水可以通过
水参与的
鏻中间体重排过程极大地促进反应,这也使得反应条件相当温和。与已知方法相比,该反应更温和、更通用,具有优异的官能团耐受性,可应用于各种
亚磷酸三芳基酯和
碘化芳基,并可扩展到
亚膦酸芳基酯和次
亚膦酸芳基酯。低催化剂负载量的克级反应也揭示了其在大规模制备中的实用性和潜力。