作者:Ralf Smounig、C. Oliver Kappe、Curt Wentrup、Gert Kollenz
DOI:10.1007/s00706-002-0547-y
日期:2003.3.1
to obtain complexation constants ( K c -values for potassium/sodium rhodanides: 480–1100 mol dm−3), as well as extraction experiments to explore the metal ion transportation abilities of the new lariat crown derivatives. In particular, a significantly increased ability to transport metal ions from water into chloroform was found with spherical tetraoxaadamantyl derivatives when compared with the free
通过使相应的氨基冠醚衍生物与二聚体α-氧杂环丁烯反应,可以制备几种带有桥联的双二恶英或四氧杂金刚烷单元作为手性取代基的新的套索状冠醚,后者是通过快速真空热裂解呋喃-2,3-二酮而获得的。前体。通过1 H NMR滴定研究了对带不同电荷金属离子的络合特性,以获得络合常数( 钾/罗丹酸钠的 K c值 :480–1100 mol dm -3 ),以及提取实验,以探索新的套索状冠衍生物的金属离子传输能力。特别地,与游离氨基-苯并冠状醚相比,球形四氧杂金刚烷基衍生物发现将金属离子从水中转移到氯仿中的能力显着提高。