Abstract
Previously unknown carboxy-substituted 2-alkylaminoethylidene-1,1-diphosphonic acids were synthesized by the reaction of vinylidenediphosphonic acid with amino acids. The reaction products, containing chiral centers, show nonequivalence of the phosphorus atoms in the31P NMR spectra as a result of diestereotopy.
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References
I. S. Alfer'ev, I. L. Kotlyarevskii, N. V. Mikhalin, and V. M. Novikova,Izv. Akad. Nauk SSSR, Ser. Khim., No. 12, 2802 (1983).
I. S. Alfer'ev, N. V. Mikhalin, and I. L. Kotlyarevskii,Izv. Akad. Nauk SSSR, Ser. Khim., No. 5, 1122 (1984).
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Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 9, pp. 2180–2183, September, 1992.
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Alfer'ev, I.S., Mikhalin, N.V. Reactions of vinylidenediphosphonic acid with nucleophiles. 4. Addition of amino acids, diastereotopy of phosphorus atoms in the addition products. Russ Chem Bull 41, 1709–1711 (1992). https://doi.org/10.1007/BF00863598
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DOI: https://doi.org/10.1007/BF00863598