Synthesis of 4-sulfonatooxy-2,2,6,6-tetramethylpiperidine-1-yloxyl derivatives for investigation of ionic liquids

被引：23

作者：

Strehmel, Veronika ^{[1
]}

Rexhausen, Hans ^{[1
]}

Strauch, Peter ^{[2
]}

机构：

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

[2] Univ Potsdam, Inst Chem Inorgan Chem, D-14476 Potsdam, Germany

来源：

TETRAHEDRON LETTERS | 2008年 / 49卷 / 04期

关键词：

spin probes; ESR spectroscopy; nitroxides; ionic liquids;

D O I：

10.1016/j.tetlet.2007.11.150

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Direct sulfonation of 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-yloxyl using chlorosulfuric acid trimethylsilylester results in 4-sulfonatooxy-2,2,6,6-tetra-methylpiperidine- 1-yloxyl in 94% yield that is the basis for the synthesis of potassium 4-sulfonatooxy-2,2,6,6-tetramethylpiperidine-1-yloxyl and sodium 4-sulfonatooxy-2,2,6,6-tetramethylpiperidine-1-yloxyl. These nitroxides can be employed as spin probes to investigate properties of ionic liquids in the molecular domain. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：586 / 588

页数：3

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