109386-58-5Relevant academic research and scientific papers
UEBER DIE UMSETZUNG VON N- BZW. O-TRIMETHYLSILYLIERTEN DERIVATEN DES ETHANOLAMINS MIT PHOSPHOR(III)-HALOGEN-VERBINDUNGEN: INTRAMOLEKULARE DONATOR-AKZEPTOR-WECHSELWIRKUNGEN IN DEN VERBINDUNGEN CH3OCH2CH2N(CH3)PCl2, (CH3)2NCH2CH2OPCl2, (CH3)2NCH2CH2N(CH3)P(C6H5)2, ...
Bettermann, Gerhard,Schomburg, Dietmar,Schmutzler, Reinhard
, p. 327 - 336 (2007/10/02)
The reaction of MeOCH2CH2N(Me)SiMe3, Me2NCH2CH2OSiMe3, and Me2NCH2CH2N(Me)SiMe3 with PCl3, PhPCl2, and Ph2PCl was found to proceed with cleavage of the N-Si or O-Si bond and formation of the phosphorus(III) compounds, 3 to 8.In this series of, in part, novel phosphorus(III) compounds an intramolecular donor-acceptor interaction between NMe2 substituents and phosphorus has been observed which in the case of the product of the reaction of Me2NCH2CH2N(Me)SiMe3 with PCl3, led to a stable intramolecular complex CH2CH2N(Me)PCl>(1+)*Cl(1-), 3a.The reversibleformation of an intramolecular complex, as a function of temperature, has been observed for Me2NCH2CH2N(Me)P(Ph)Cl, 4 while no evidence for an intramolecular interaction was noted for compounds 5, 6 and 8.For compound 7, which is obtained as a solid an intramolecular interaction between phophorus and nitrogen seems likely in the solid state but cannot be observed by n.m.r. spectroscopy in solution in CDCl3.A single crystal X-ray structure determination for 3a has established its identity as an intramolecular complex.The X-ray structure determination proved the existence of a tricoordinate phosphorus atom with a rather short covalent P-N bond with a bond-distance of 162 pm and a short coordinative P-N bond of 184,2 pm.No interaction of the second chlorine with phosphorus was observed.
