A novel, efficient method for the synthesis of spirophosphoranes containing a pentacoordinated P–C bond has been developed by P-alkylation reaction between pentacoordinated hydrospirophosphorane and halohydrocarbon. A series of new spirophosphoranes were synthesized, and the relative phosphorus configurations were presumed by ¹H NMR NOESY or coupling constants experiment. Furthermore, the stereochemical mechanism of the pentacoordinated P-alkylation reaction was proposed by the verified experiment and ³¹P NMR tracing experiment.

中文翻译：

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通过P-烷基化反应合成含有五配位PC键的新型螺膦

通过五配位氢螺膦与卤代烃之间的P-烷基化反应，已经开发出一种新颖，高效的合成具有五配位P–C键的螺磷膦的方法。合成了一系列新的螺正膦，并通过¹ H NMR NOESY或偶合常数实验推测了相对的磷构型。此外，通过验证实验和³¹ P NMR示踪实验，提出了五配位P-烷基化反应的立体化学机理。