Summary
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1.
The free radical 2,2,6,6-tetramethyl-4-hydroxypiperidine-1-oxide can be smoothly esterified at the hydroxyl group without the free valence being affected.
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2.
The 2,2,6,6-tetramethyl-4-hydroxypiperidine-1-oxide esters ofp-toluenesulfonic, phenylcarbamic, and 3,5-dinitrobenzoic acids have been synthesized.
Literature cited
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Rozantsev, É.G. Reactions of a new organic radical which do not affect the free valence. Russ Chem Bull 12, 1527–1529 (1963). https://doi.org/10.1007/BF00844111
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DOI: https://doi.org/10.1007/BF00844111