Title of article
Synthesis of 4-sulfonatooxy-2,2,6,6-tetramethylpiperidine-1-yloxyl derivatives for investigation of ionic liquids
Author/Authors
Strehmel، نويسنده , , Veronika and Rexhausen، نويسنده , , Hans Christian Strauch، نويسنده , , Peter، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2008
Pages
3
From page
586
To page
588
Abstract
Direct sulfonation of 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-yloxyl using chlorosulfuric acid trimethylsilylester results in 4-sulfonatooxy-2,2,6,6-tetramethylpiperidine-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.
Keywords
Nitroxides , Ionic liquids , spin probes , ESR spectroscopy
Journal title
Tetrahedron Letters
Serial Year
2008
Journal title
Tetrahedron Letters
Record number
1860097
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