73685-86-6Relevant articles and documents
Donor-Stabilized Cations and Imine Transfer from N-Silylphosphoranimines
Rivard, Eric,Huynh, Keith,Lough, Alan J.,Manners, Ian
, p. 2286 - 2287 (2004)
A series of donor-stabilized N-silylphosphoranimine salts [DMAP·PCl2=NSiMe3]+X- (DMAP = 4-(dimethylamino)pyridine) were prepared by the reaction of Cl3P=NSiMe3 with DMAP in the presence of silver salts AgX (X = OSO2CF3, BF4, and SbF6). Repeating the reaction in the absence of AgX gave the chloride salt [DMAP·PCl2=NSiMe3]Cl which has been shown to be in equilibrium with free DMAP and Cl3P=NSiMe3. Attempts to stabilize a N-silylphosphoranimine cation with phosphine donors led to unexpected imine transfer chemistry. For example, Cl3P=NSiMe3 reacts with phosphines, R3P (R = nBu and Ph), to produce the metathesis products PCl3 and R3P=NSiMe3 which subsequently react together to afford the N-phosphinophosphoranimines R3P=N?PCl2 and ClSiMe3 as a byproduct. Copyright
SYNTHESIS AND REACTIVITY OF N-PHOSPHANYL PHOSPHAZENES
Riesel, Lothar,Friebe, Robert,Sturm, Detlef
, p. 207 - 210 (2007/10/02)
The reaction of phosphorus(III) halides, R'3-nPXn (X = F, Cl), with silyl azides, R3SiN3, are described.N-silylated halophosphazenes, R'3-nPX=N-SiR3, are only obtained with fluorophosphanes having bulky substituents.Usually azidophosphanes, R'3-nP(N3)n, are formed as intermediates.These may react both as azide and as phosphane components in the Staudinger reaction forming N-phosphanyl phosphazenes, R'2P-N=PR3, or azidophosphazenes, R'3-nP(N3)n=NY (n = 1, 2), which can be converted into di- and triphosphazenes, R'3-nP(N=PR3)n=NY.A one pot procedure for preparing N-phosphanyl phosphazenes had been developed.Replacement as well as oxidation reactions of Cl2P-N=PPh3 and its derivatives are presented.
