FIELD: organic synthesis.
SUBSTANCE: preparation of 2,2,6,6-tetramethylpyperidine-1-oxyl depicted by general formula: 
comprises providing a stock solution at room temperature and is characterized by that through solution comprised of sodium sulfate, methylene dichloride, and 1-chloro-2,2,6,6-tetramethylpyperidine of general formula: 
in membrane-free electrolyzer with platinum electrodes, 1.5 A electric current is passed during 3 h.
EFFECT: expanded synthetic possibilities in nitroxyl compounds area and reduced process expenses.
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