Na[PCO] reacts with Ph₃ECl (E=Si, Ge, Sn) and Na[N(SiMe₃)₂] to form the series of anions [Ph₃E−P−CN]⁻. The silylated anion forms PCN heteroallenes in reactions with tetrel chlorides and binds via nitrogen to triphenylborane. P-nucleophilicity and lability of the silyl substituent in [Ph₃Si−P−CN]⁻ are evidenced in reactions with isocyanates and carbodiimides, which afford phosphorus analogues of cyanourea and 2-cyanoguanidine.

中文翻译：

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氰基 (三苯基甲硅烷基) 磷化物作为 P、C、N 共轭分子的结构单元

Na[PCO] 与 Ph ₃ ECl (E=Si, Ge, Sn) 和 Na[N(SiMe ₃ ) ₂ ] 反应形成一系列阴离子 [Ph ₃ E-P-CN] ^-。甲硅烷基化的阴离子在与四氯化碳反应中形成 PCN 杂丙二烯，并通过氮与三苯基硼烷结合。[Ph ₃ Si-P-CN] ^-中甲硅烷基取代基的 P-亲核性和不稳定性在与异氰酸酯和碳二亚胺的反应中得到证实，这些反应提供了氰脲和 2-氰基胍的磷类似物。