LIPOPHILIC DITOPIC GUANIDINIUM RECEPTORS - SELECTIVE EXTRACTANTS FOR TETRAHEDRAL OXOANIONS

被引：36

作者：

STEPHAN, H ^{[1
]}

GLOE, K ^{[1
]}

SCHIESSL, P ^{[1
]}

SCHMIDTCHEN, FP ^{[1
]}

机构：

[1] TECH UNIV MUNICH,LEHRSTUHL ORGAN CHEM & BIOCHEM,D-85747 GARCHING,GERMANY

来源：

SUPRAMOLECULAR CHEMISTRY | 1995年 / 5卷 / 04期

关键词：

D O I：

10.1080/10610279508233954

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ditopic open-chain guanidinium receptors have been developed especially for a selective extraction of tetrahedral oxoanions. The anion extraction behaviour of these host compounds has been studied in the system sodium salt-H2O-buffer/host-CHCl3. Lipophilic bisguanidines are capable of extraction of even strongly hydrated anions as hydrogen phosphate, sulfate and nucleotides over a wide pH range, A remarkable selectivity of sulfate over hydrogen phosphate was obtained using receptors 2, 5 and 7. The ditopic host 2 shows a pronounced preference for ATP versus ADP and AMP, The 1:1 complex formation observed in the organic phase points to a well-organized complex structure for the oxoanions investigated and ditopic hosts.

引用

页码：273 / 280

页数：8

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