GRAPHICAL ABSTRACT Abstract λ3-phosphahexatrienes were prepared from ethoxyvinyl phosphinophosphonates using the phospha-Wittig–Horner reaction. The title compounds can be easily prepared in three steps starting from dichlorophosphines with good overall yields. Although these were found to be thermally unstable, these can be trapped, for instance, with methanol. The resulting methoxyphosphines are
图形摘要 摘要 λ3-
磷酸六
三烯是使用
磷酸-Wittig-Horner 反应从乙氧基
乙烯基膦酸酯制备的。标题化合物可以从二
氯膦开始以良好的总产率通过三个步骤轻松制备。虽然这些被发现是热不稳定的,但它们可以被捕获,例如,用
甲醇。在醛原料具有更大取代基的情况下,以高产率分离所得甲氧基膦。