The catalytic rearrangement of the metallo-bis(methylene)phosphorane 1 in the coordination sphere of an iron atom furnishes two isomeric five-membered heterocycles 2 and 3 resulting from the incorporation of the C3H5 ligand and one of the P–C double bonds; a similar reactivity could be obtained in the reaction of the chlorobis(methylene)phosphorane 4 with AlBui3, which affords the 1H-λ5-methylenephospholane 6.
                                    金属双(亚甲基)膦烷 1 在
铁原子的配位层中发生催化重排反应,生成两个异构的五元杂环 2 和 3,这是因为加入了 
C3H5 配体和其中一个 P-C 双键;
氯双(亚甲基)膦烷 4 与 AlBui3 发生反应,生成 1H-λ5-亚
甲基膦烷 6,也可获得类似的反应活性。