Cyclisation of bis(methylene)phosphoranes: a new way to five-membered heterocycles
作者:Hans J�rgen Metternich、Edgar Niecke、John F. Nixon
DOI:10.1039/c39920000627
日期:——
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.
Synthesis of a metal-free three-co-ordinate phosphorus(V) hydride and its conversion into a phospha-alkene via reductive hydride shift
作者:Andrew R. Barron、Alan H. Cowley
DOI:10.1039/c39870001092
日期:——
The reaction of CIP[C(SiMe3)2]2 with PriMgCl affords the phospha-allene HP[C(SiMe3)2]2, which isomerises to the phospha-alkene, (Me3Si)2CHPC(SiMe3)2, via a reductivehydrideshift.
(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Fe(CO)<sub>2</sub>{P[C(SiMe<sub>3</sub>)<sub>2</sub>]<sub>2</sub>}, the first three-co-ordinate metallo–bis(methylene)phosphorane
作者:Andrew R. Barron、Alan H. Cowley
DOI:10.1039/c39870001272
日期:——
The reaction of CIP[C(SiMe3)2] with [(η5-C5H5)Fe(CO)2]K affords (η5-C5H5)Fe(CO)2P[C(SiMe3)2]2}, the first example of a three-co-ordinate mestallo-bis(methylene)phosphorane (metallophospha-allene).