Metal complexes of the pentamethylcyclopentadienyl (Cp★)-substituted diphosphenes and arsaphosphenes 1–5 are described (Cp★PPCp★ (1), Cp★PPAr (2), Cp★AsPAr (3), Cp★PAsAr (4), Cp★PAsCp★ (5), Ar = 2,4,6-Tri-t-butylphenyl). In the reaction with metal carbonyls the trans-η1-complexes 6–12 are formed (Cp★(Mo(CO)5)PPAr (6), Cp★(W(CO)i)PPAr (7), Cp★(Cr(CO)5)PPAr (8), Cp★(Cr(CO)5)As = PAr) (9), Cp★(Fe(CO)4)PPAr
Pentamethylcyclopentadienyl substituted diphosphene, bicyclo[1.1.0]Tetraphosphane, cyclotetraphosphane and cyclotriphosphanes from dihalogeno(pentamethylcyclopentadienyl) phosphanes
作者:P. Jutzi、T. Wippermann
DOI:10.1016/0022-328x(85)80078-4
日期:1985.5
Reaction of dichloro- or dibromo-(pentamethylcyclopentadienyl)phosphane with Group I or Group IImetals gives pentamethylcyclopentadienyl substituted diphosphene, bicyclo[1.1.0]tetraphosphane, cyclotetraphosphane and cyclotriphosphanes, which have been unambiguously characterised from their NMR data.
Stepwise activation of “non-innocent” Cp* substituents – a Cp* based cascade reaction
作者:Markus Stubenhofer、Giuliano Lassandro、Gábor Balázs、Alexey Y. Timoshkin、Manfred Scheer
DOI:10.1039/c2cc32690f
日期:——
Reactions of Cp* substituted pentelidene complexes with the primary phosphine Cp*PH(2) yield novel polycyclic phosphorus/arsenic and carbon containing cage compounds via cascade-like reactions. These reactions include a sequence of nucleophilicaddition reactions, intramolecular hydrophosphination (partially hydroarsination) reactions, retro-Diels-Alder reactions with Cp*H elimination and subsequent