α-Aminophosphonate analogues containing a phthalazine skeleton were efficiently obtained by a new transition-metal-free addition of dialkyl phosphites to phthalazin-2-ium bromide under mild conditions. A mechanistic study using isotope labeling and radical inhibition experiment revealed that the present transformation passes through a nucleophilic addition of dialkyl phosphates, rather than an insertion of P-H to carbenes.

中文翻译：

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亚磷酸二烷基酯与溴化酞嗪-2-鎓的无过渡金属加成：α-氨基膦酸盐类似物的合成

通过在温和条件下将亚磷酸二烷基酯无过渡金属加成到 phthalazin-2-ium 溴化物中，有效地获得了含有酞嗪骨架的 α-氨基膦酸盐类似物。使用同位素标记和自由基抑制实验的机理研究表明，目前的转化通过磷酸二烷基酯的亲核加成，而不是P -H 插入卡宾。