作者:L. I. Vagapova、D. R. Sharafutdinova、O. B. Bazanova、Yu. K. Voronina、D. B. Krivolapov、A. R. Burilov、I. Kh. Rizvanov、M. A. Pudovik
DOI:10.1134/s1070363214020236
日期:2014.2
The Kabachnik-Fields reaction in a triple system (aminoacetal-paraform-diethyphosphite) resulted in the formation of the previously unknown aminophosphonates that contained the acetyl group and also their monoesters. Structures of the products were confirmed by H-1 NMR, IR spectra and X-ray diffraction analysis. The MALDI mass spectra indicated that the presence of N-hydroxyethoxyphosphorylmethylaminomethyl groups underlies the ability of these compounds to self-assembly with the formation of n-dimensional H-bonded associations.
α-Amino acetals containing a phosphonate or phosphine oxide group. Synthesis and reactions with resorcinols
作者:L. I. Vagapova、L. R. Amirova、E. Yu. Pavlova、A. R. Burilov、Yu. K. Voronina、V. V. Syakaev、D. R. Sharafutdinova、I. Kh. Rizvanov、A. R. Garifzyanov、M. A. Pudovik
DOI:10.1134/s1070428014040034
日期:2014.4
New alpha-amino acetals containing a phosphonate or phosphine oxide group were synthesized by the Kabachnik-Fields reaction in the ternary system amino acetal-paraformaldehyde-dialkyl phosphonate (or dialkylphosphine oxide). Condensation of dialkyl (2,2-dimethoxyethylamino)methylphosphonates with resorcinol and its derivatives in ethanol in the presence of hydrochloric acid, apart from the corresponding 2,2-bis(polyhydroxyphenyl) ethylammonium salts, gave 2,5-bis(polyhydroxyphenyl)-1,4-bis[(dialkoxyphosphoryl)methyl]-piperazines. Dialkyl[(2,2-dimethoxyethylamino)methyl]phosphine oxides (Alk = C8H17, C10H21) did not react with resorcinol derivatives under similar conditions, and analogous ammonium salts were obtained by heating the reactants in boiling trifluoroacetic acid.
Synthesis of New calix[4]resorcinols with [N-diethoxyphosphorylmethyl-N-(2,2-dimethoxyethyl)amino]methyl Substituents at the Upper Rim
作者:Liliya I. Vagapova、Aliya F. Fahertdinov、Alexander R. Burilov、Mikhail A. Pudovik
DOI:10.1016/j.mencom.2012.11.016
日期:2012.11
Calix[4]resorcinols containing four [N-diethoxyphosphorylmethyl-N-(2,2-dimethoxyethyl)amino]methyl substituents at the upper rim of molecule were synthesized by condensation of calix[4]resorcinols with formaldehyde and diethyl N-(2,2-dimethoxyethyl)aminomethylphosphonate.
Synthesis and Structure of Aminophosphonates Containing 3,5-Di-Tert-Butyl-4-Hydroxyphenyl and Acetal Groups
作者:Liliya I. Vagapova、Lyaysan R. Amirova、Victor V. Syakaev、Julia K. Voronina、Dmitry B. Krivolapov、Alexander R. Burilov、Michail A. Pudovik、Oleg G. Sinyashin
DOI:10.1080/10426507.2015.1071371
日期:2015.12.2
The reactions of dialkyl [(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadienyl)methyl]phosphonates with N-nucleophiles (aminoacetaldehyde dimethyl acetal and diethyl [(2,2-dimethoxyethyl)aminomethyl]phosphonate give new aminophosphonates containing the 3,5-di-tert-butyl-4-hydroxyphenyl substituent, in addition to the acetal group. The crystal structure of diethyl (3,5-di-tert-butyl-4-hydroxyphenyl)[(2,2-dimethoxyethyl)amino]methyl}phosphonate is elucidated. The presence of a chiral carbon atom and prochiral phosphorus atom in the aminophosphonate products is responsible for the complicated pattern in the H-1 NMR spectra, the features of which are discussed.