15729-44-9Relevant articles and documents
13C and 31P NMR Studies of Some Aminophosphonium Chlorides
Krannich, Larry K.,Kanjolia, Ravindra K.,Watkins, Charles L.
, p. 320 - 324 (1987)
The multinuclear NMR spectral data for an homologous series of tertiary phosphines R(3-n)P(NMe2)(n), aminophosphonium ions, (+), and phosphonium ions, (+), where R=Me, Et, (n)-Pr and Ph, R' and/or R''=H, Me and n=0 and 1 are reported and discussed.Quaternization by alkylation or alkylation or chloramination causes an increase in the 31P chemical shift (ΔδP is positive), a decrease in the 13C chemical shift (ΔδC is negative) for all carbons, an increase in the magnitudes of 1J(PC), 3J(PC), 3J(PNCH) and 2J(PCH) and a decrease in the magnitude of 2J(PC).Substitution of a Me2N group for an alkyl or aryl group produces an increase in the 31P chemical shift and in the magnitude of 1J(PC). α- and β-deshielding and γ-shielding effects are noted in the 13C NMR spectra and β-deshielding and γ-shielding effects are noted in the 31P NMR spectra with substitution on the phosphorus and nitrogen atoms. - Key words: 13C NMR, 31P NMR, Tertiary phosphines, Aminophosphonium ions, Phosphonium ions
An Unaspected Synthesis of Tripheriylphosphazenium Chloride, [(C6H5)3PNH2]+Cl -, and a Redetermination of its Crystal Structure
Vogt,Fischer,Jones
, p. 865 - 868 (1996)
Triphenylphosphazenium chloride has been prepared by the reaction of triphenylphosphine with trimethylsilylazide in impure, wet dichloromethane. Yields arc improved as stoichiometric quantities of water are added. Colourless crystals are obtained by recry
A new and convenient method for the synthesis of strong non-ionic bases
Taillefer, Marc,Rahier, Nicolas,Hameau, Aurelien,Volle, Jean-Noel
, p. 3238 - 3239 (2008/09/20)
Various strong non-ionic phosphazene bases were obtained by a new, efficient and very simple method involving the lithium phosphonium azayldiide Ph3P=NLi (2) as a precursor. The Royal Society of Chemistry 2006.