A 2-(phosphirenyl)ethylphosphinidene [W(CO)5]2 complex undergoes an original phosphinidene + phosphirene self-condensation to yield the tricyclic compound 5 with an unusual 2,4-diphosphabicyclobutane “butterfly” structure. The product has been characterized by X-raycrystalstructure analysis and its formation studied from a theoretical standpoint at the B3LYP/6-311+G(d,p) level.
Intramolecular [4+2] versus [2+2] cycloadditions in P–X–P-linked biphospholes (X = O, S)
作者:Matthew P. Duffy、Yuhan Lin、Liow Yu Ting、François Mathey
DOI:10.1039/c1nj20087a
日期:——
Under solar light at room temperature, the tungstenpentacarbonylcomplex of the P–S–P-linked biphosphole (6) undergoes a [2+2] intramolecular cycloaddition. Then, this [2+2] dimer (7) gives the original [4+4] dimer (8) via a Coperearrangement. This sequence stands in sharp contrast with the behavior of the corresponding P–O–P-linked biphosphole (2) which undergoes a classical [4+2] cycloaddition
Introducing new phosphorus substituents in terminal phosphinidene complexes. An illustration with [(ethoxycarbonyl)phosphinidene]-, (tert-butoxyphosphinidene)-, and (fluorenylphosphinidene)pentacarbonyltungsten complexes
作者:Serge Holand、Francois Mathey
DOI:10.1021/om00098a017
日期:1988.8
Alcaraz, Jean-Marie; Svara, Juergen; Mathey, Francois, Nouveau Journal de Chimie, 1986, vol. 10, p. 321 - 326