Synthesis of β-Aminophosphonates and Study of Their Acid-Base Properties and Phase Distribution in Water-Organic Solvent Systems |
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| Authors: | R. A. Cherkasov V. I. Galkin N. G. Khusainova O. A. Mostovaya A. R. Garifzyanov G. Kh. Nuriazdanova N. S. Krasnova E. A. Berdnikov |
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| Affiliation: | (1) Butlerov Chemical Institute, Kazan State University, ul. Kremlevskaya 18, Kazan, Tatarstan, 420008, Russia |
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| Abstract: | ![]()
New and previously known β-aminoethylphosphonates were synthesized by addition of primary and secondary amines to vinylphosphonates, and their IR and NMR spectra were examined. Diethyl 2-diethylaminoethylphosphonate and diethyl 2-morpholinoethylphosphonate were found to be stronger bases than the corresponding aminomethylphosphonates, but all these are weaker bases than their precursors, nonphosphorylated amines. Distribution constants of β-aminophosphonates between water and some organic solvents were determined and compared with those of their α-amino homologs. |
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