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Partition constants of α-aminophosphonates in two-phase aqueous-organic solvent systems

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Abstract

Two-phase potentiometric titration was used to determine partition constants for a series of α-aminophosphonates (RO)2P(O)CH2NR1R2 [R = Alk (C2-C5), R1, R2 = Me, Et, (CH2)5] between water and organic solvents, such as chloroform, carbon tetrachloride, toluene, octane, n-octanol, nitrobenzene, o-xylene, and cyclohexane. Correlations between the partition constants and the number of carbon atoms in substrate molecules were obtained. Solvent effects on partition constants were discussed, and solution parameters of α-aminophosphonates were calculated.

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Authors and Affiliations

  1. Kazan State University, Kazan, Tatarstan, Russia

    A. R. Garifzyanov, G. Kh. Nuriazdanova, S. V. Zakharov & R. A. Cherkasov

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  1. A. R. Garifzyanov
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  2. G. Kh. Nuriazdanova
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  3. S. V. Zakharov
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  4. R. A. Cherkasov
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Translated from Zhurnal Obshchei Khimii, Vol. 74, No. 12, 2004, pp. 1998–2002.

Original Russian Text Copyright © 2004 by Garifzyanov, Nuriazdanova, Zakharov, Cherkasov.

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Garifzyanov, A.R., Nuriazdanova, G.K., Zakharov, S.V. et al. Partition constants of α-aminophosphonates in two-phase aqueous-organic solvent systems. Russ J Gen Chem 74, 1885–1889 (2004). https://doi.org/10.1007/s11176-005-0112-6

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  • DOI: https://doi.org/10.1007/s11176-005-0112-6

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