Potassium trimethylsilanolate-mediated conversion of dialkyl phosphonates to their anhydrous potassium monoalkyl phosphonates under mild, non-aqueous conditions
Anhydrous potassium monoalkyl phosphonates have been prepared from the corresponding dialkyl phosphonates and potassium trimethylsilanolate under non-aqueous conditions in good to excellent yields. Simple workup procedure has been developed to afford high purity products.
Dziemidowicz, Joanna,Witt, Dariusz,Sliwka-Kaszynska, Magdalena,Rachon, Janusz
p. 569 - 574
(2007/10/03)
Iminoxy Free Radicals Derived from Diethyl (1-Hydroxyimino)phosphonates. An EPR Study
Iminoxy radicals containing the diethyl phosphonate group have been synthesized and characterized by means of EPR spectroscopy.Structures of the Z and E isomers have been established on the basis of hyperfine splitting due to 14N, 31P, and 1H nuclei.The higher stability of the E isomer over the Z isomer has been established by analysis of anisotropic spectra.The source of a dependence of the 31P hyperfine constant on the solvent polarity is discussed.
Chmielewski, Piotr J.,Jezierski, Adam,Siatecki, Zdzislaw
p. 1421 - 1424
(2007/10/02)
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