Diazoalkenes readily react with tert‑butylphosphaalkyne (tBuCP) and white phosphorus (P4) to afford novel phosphorus heterocycles, 3H‑1,2,4‐diazamonophospholes and 1,2,3,4‐diazadiphospholes. Both species represent rare examples of neutral heterophospholes. The mechanism of formation and the electronic structures of these formal (3+2) cycloaddition products were analyzed computationally. The new phospholes form structurally diverse coordination compounds with transition metal and main group elements. Given the growing number of stable diazoalkenes, this work offers a straightforward route to neutral aza(di‐)phospholes as a new ligand class.

中文翻译：

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重氮烯烃与 P4 和 tBuCP 的环加成：获得二氮杂磷化合物


重氮烯烃很容易与叔丁基磷炔 (tBuCP) 和白磷 (P4) 反应，生成新型磷杂环、3H-1,2,4-二氮杂单磷和 1,2,3,4-二氮杂二磷。这两个物种都代表了中性杂磷的罕见例子。对这些形式的(3+2)环加成产物的形成机制和电子结构进行了计算分析。新的磷化物与过渡金属和主族元素形成结构多样的配位化合物。鉴于稳定的重氮烯烃数量不断增加，这项工作为中性氮杂（二）膦作为新的配体类别提供了一条直接的途径。