Synthesis, acid‒base properties, and complexing properties of N,N-bis[butoxy(hydroxy)phosphinoylmethyl]glycine


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Abstract

N,N-Bis(dibutoxyphosphinoylmethyl)glycine was synthesized by the Kabachnik‒Fields reaction in the three-component system glycine hydrochloride–formaldehyde–dibutyl hydrogen phosphite. Saponification of the product gave N,N-bis[butoxy(hydroxy)phosphinoylmethyl]glycine as the normal potassium salt. pH-Metric titration was used to determine the ionization constants of N,N-bis[butoxy(hydroxy)phosphinoylmethyl]-glycine, аs well as the stability constants of its Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes.

About the authors

I. D. Shurygin

Kazan Federal University

Author for correspondence.
Email: idshurygin@gmail.com
Russian Federation, ul. Kremlevskaya 18, Kazan, Tatarstan, 420008

A. R. Garifzyanov

Kazan Federal University

Email: idshurygin@gmail.com
Russian Federation, ul. Kremlevskaya 18, Kazan, Tatarstan, 420008

R. A. Cherkasov

Kazan Federal University

Email: idshurygin@gmail.com
Russian Federation, ul. Kremlevskaya 18, Kazan, Tatarstan, 420008

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