Conclusions
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1.
Stable nitroxyl radical derivatives of 2,2,6,6-tetramethylpiperidine containing functional groups were synthesized: paramagnetic trifluoro-β-diketones, α-hydroxy and α-keto oxides, Mannich bases, tetrahydrofuranones, unsaturated ketones, vinylacetylenic and divinyl monomers, certain diene synthesis adducts, and chelate complexes of Cu(II) and Co(II) with paramagnetic organic ligands.
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2.
The possibility of the participation of stable nitroxyl radicals in the Mannich, Claisen, Prilezhaev, and Weitz and Scheffer reactions was demonstrated for the first time.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 151–158, January, 1979.
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Shapiro, A.B., Skripnichenko, L.N., Pavlikov, V.V. et al. Synthesis of nitroxyl radicals based on 4-ethynyl-4-hydroxy-2,2,6,6-tetramethylpiperidine. Russ Chem Bull 28, 140–148 (1979). https://doi.org/10.1007/BF00925412
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DOI: https://doi.org/10.1007/BF00925412