Synthesis of a new ionic spin probe for investigation of polar and non-polar solvents

被引：14

作者：

Strehmel, Veronika ^{[1
]}

Rexhausen, Hans ^{[1
]}

Strauch, Peter ^{[1
]}

机构：

[1] Univ Potsdam, Inst Chem, D-14476 Potsdam, Germany

来源：

TETRAHEDRON LETTERS | 2008年 / 49卷 / 50期

关键词：

Spin probes; ESR spectroscopy; Nitroxides; Ionic liquids;

D O I：

10.1016/j.tetlet.2008.09.167

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A synthesis is described for the new ionic spin probe potassium-(18-crown-6)-4-sulfonatooxy-2,2,6,6-tetrametliyl-piperidine-1-yloxyl. This new spin probe shows an improved solubility in both polar and non-polar solvents in comparison with the potassium-4-sulfonatooxy-2,2,6,6-tetrametyl-pipeidine-lyloxyl. Furthermore, the solubility of potassium-(18-crown-6)-4-sulfonatooxy-2,2,6,6-tetramethyl-piperidine-1-yloxyl is also improved in ionic liquids relative to the potassium salt comprising no crown ether moiety. The spin probe potassium-(18-crown-6)-4-sulfonatooxy-2,2,6,6-tetramethyl-piperidine-1-yloxyl is highly suitable for investigation of both less polar and highly Polar environments. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：7143 / 7145

页数：3

共 23 条

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