Urea Salts with 1-Hydroxyethylidene Diphosphonic Acid
Panshina S.Y. Bakibaev A.A. Malkov V.S. Belykh S.I. Zhumanov K.B. Gorbin S.I. Ponarin N.V. Kotelnikov O.A.
March 2021Pleiades journals
Russian Journal of General Chemistry
2021#91Issue 3379 - 382 pp.
Abstract: The reaction of urea with 1-hydroxyethylidene diphosphonic acid in the ratios of 1 : 1, 1 : 2, 1 : 3 was first studied. As a result of the reactions, the corresponding 1 : 2 or 2 : 1 salts were formed, which can exhibit biological activity. The synthesized compounds were characterized by atomic emission spectroscopy, IR and NMR spectroscopy. According to atomic emission analysis, an increase in the amount of urea from 3 moles or more per 1 mole of 1-hydroxyethylidene diphosphonic acid does not cause an increase in the urea content in the final products. According to NMR spectroscopy data, compounds in the formation of which phosphoryl groups of 1-hydroxyethylidene diphosphonic acid are involved are in dynamic equilibrium salt–free acid.
1-hydroxyethylidene diphosphonic acid , complexing properties , phosphoryl group , urea
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National Research Tomsk State University, Tomsk, 634050, Russian Federation
National Research Tomsk Polytechnic University, Tomsk, 634050, Russian Federation
M.Kh. Dulaty Taraz State University, Taraz, 080012, Kazakhstan
National Research Tomsk State University
National Research Tomsk Polytechnic University
M.Kh. Dulaty Taraz State University
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