Synthesis and Membrane Transport Properties of N-Functionalized α-Aminophosphine Oxides
摘要:
New lipophilic mono- and bisphosphinylamines including those possessing additional potential centers of coordination were synthesized on the basis of the Kabachnik-Fields reaction, and membrane transport properties of the synthesized compounds toward the rare and rare-earths were studied. Highly effective extractant of Sc(III) was found possessing a high degree of selectivity in the separation of Sc(III) ions from the ions of satellite metals.
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 novel mono-and bisaminophosphoryl compounds and their membrane transport properties for acidic substrates
作者:R. A. Cherkasov、A. S. Talan、A. V. Tarasov、A. P. Garifzyanov
DOI:10.1134/s1070363208070062
日期:2008.7
Some novel aminophosphoryl compounds were synthesized by the Kabachnik-Fields reaction. Their membrane transport properties for mono-and polyfunctional carboxylic acids with different number of functional groups were studied to establish that the transport rate of acidic substrates through liquid impregnated membranes increases in going from mono-to diphosphoryl carriers. Additional hydrophilic groups in the substrate molecule, too, affect transport efficiency.