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.
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页码：586 / 588
页数：3
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