Synthesis of new liophilic functionalized aminomethylphosphine oxides and their acid-base and membrane-transport properties toward acidic substrates
作者:R. A. Cherkasov、A. R. Garifzyanov、A. S. Talan、R. R. Davletshin、N. V. Kurnosova
DOI:10.1134/s1070363209090114
日期:2009.9
A large number of new lipophilic mono- and bisphosphinylamines including those possessing additional potential centers of coordination was synthesized on the basis of the Kabachnik-Fields reaction, and acid-base and membrane transport properties of the synthesized compounds toward the mono- and polybasic carboxylic acids were studied. By their basicity all the synthesized aminophosphine oxides were
在Kabachnik-Fields反应的基础上,合成了许多新的亲脂性单膦酸和双膦胺,包括具有额外潜在配位中心的那些,以及合成的化合物对一元和多元羧酸的酸碱和膜传输特性被研究了。由于它们的碱性,所有合成的氨基膦氧化物均显示出劣于其脂族胺前体。第二次膦基的引入极大地降低了碱性,以致于不可能通过电位法确定p K a。讨论了氨基次膦酰基载体与底物的结构与酸性底物的膜运输效率之间的相互关系。
Synthesis of new lipophilic phosphine oxide derivatives of natural amino acids and their membrane transport properties toward carboxylic acids
作者:S. A. Koshkin、A. R. Garifzyanov、N. V. Davletshina、O. N. Kataeva、D. R. Islamov、R. A. Cherkasov
DOI:10.1134/s1070428015090031
日期:2015.9
One-pot procedures were developed for the synthesis of lipophilic N-(dialkylphosphorylmethyl) derivatives of natural amino acids with high yields from dioctyl- or didecylphosphine oxide, formaldehyde, and amino acid in the presence of amino acid hydrochloride. The reactions with some amino acids were also effective under catalysis by crownether. The structure of the isolated N-(dialkylphosphorylmethyl)
开发了一锅法,用于在氨基酸盐酸盐的存在下,从二辛基或二癸基氧化膦,甲醛和氨基酸以高收率合成天然氨基酸的亲脂性N-(二烷基磷酰基甲基)衍生物。与某些氨基酸的反应在冠醚的催化下也是有效的。分离的N-(二烷基磷酰基甲基)和N,N-双(二烷基磷酰基甲基)氨基酸的结构是根据1 H,13 C和31 P NMR和质谱确定的。(S)-N的结构通过X射线分析证实了-[[(二环己基磷酰基)甲基]-α-丙氨酸,并表征了其分子在晶体中的分子间缔合。研究了新型磷酸化氨基酸相对于多官能团羧酸的膜传输特性,并估算了影响酸性底物膜传输效率和选择性的因素。揭示了通过含有N,N-双[(二辛基磷酰基)甲基]-β-丙氨酸的液膜选择性提取戊二酸。
Synthesis of New α-Bisaminophosphinoxides
作者:Rafael A. Cherkasov、Airat R. Garifzjanov、Rustam R. Davletshin
DOI:10.1080/10426507.2010.517585
日期:2011.3.31
Abstract A series of bis- and tetra(phosphinoxymethyl)diamines was synthesized in a three-component Kabachnik-Fields reaction starting from a phosphinic acid, formaldehyde, and a diamine. The extracting properties of some selected novel compounds have been studied. Significant diminishing of the amino group basicity in the final products was found.
Synthesis of α-Aminophosphine Oxides with Chiral Phosphorus and Carbon Atoms
作者:Rafael A. Cherkasov、Airat R. Garifzyanov、Sergey A. Koshkin
DOI:10.1080/10426507.2010.524181
日期:2011.3.31
Lipophilic α-aminophosphineoxides are good extractants for liquid and membrane extraction. Optically active α-aminophosphineoxides, containing chiral centers in their structure, can provide selective means for transfer of stereoisomers through supported liquid membranes. We have developed a method for synthesis of such carrier compounds based on a three-component Kabachnik–Fieldsreaction.
Synthesis and Ionophoric Properties of α,ω-Diphosphorylated Aza Podands: II. Kabachnik-Fields Reaction as a Method for Design of α,ω-Diphosphorylated Aza Podands and Their Use for Determination of Metal Ions
作者:A. R. Garifzyanov、R. I. Vasil’ev、R. A. Cherkasov
DOI:10.1007/s11176-005-0201-6
日期:2005.2
Methods of the design of podands with α-aminomethylphosphine oxide terminal groups with the purpose of investigation of the ionophoric properties of the podands and their use as components of ion-selective electrodes are analyzed. The most convenient procedure is a one-pot synthesis based on the Kabachnik-Fields reaction in a system comprising a dialkyl(aryl)phosphinous acid, formaldehyde, and a diamine. An alternative procedure is two-stage and involves the reaction of a primary amine with a phosphinous acid and formaldehyde to form an α-aminomethyldialkyl(aryl)phosphine oxide in the first stage and cross-linking of two molecules of this compound via reaction with a dihalooligoether of the corresponding length in the second. Advantages and disadvantages of both procedures are considered. Electrode-active properties of the prepared aza podands are studied to show that ion-selective electrodes on their basis can be used for selective determination of low concentrations of alkali and alkaline-earth metal ions.