Multicomponent phosphonylation is accomplished upon the reaction of an imine with an aryne generated in situ in the presence of a dialkyl phosphite. This transition-metal-free protocol shows a broad substrate scope, providing a variety of α-aminophosphonates in moderate to good yields. A plausible mechanism for the reaction is proposed based on a deuterium exchange experiment.
在
亚磷酸二烷基酯存在下,
亚胺与原位生成的
芳烃反应可完成多组分膦酰化反应。这种无过渡
金属的方案显示了广泛的底物范围,可提供中等至良好产率的多种α-
氨基膦酸酯。基于
氘交换实验,提出了一种合理的反应机理。