Conclusions
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1.
Reaction of 1-hydroxy-2,2,4,5,5-pentamethyl-3-imidazoline with thiocarboxylic acid derivatives in the presence of phenyllithium followed by oxidation affords enaminothiocarbonyl derivatives of imidazoline nitroxyl radicals.
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2.
Treatment of the enaminothiocarbonyl compounds with sodium hypobromite affords, depending on the substituent at the thiocarbonyl carbon atom, either acetylenic derivatives, or bromo-derivatives of the enaminocarbonyl compounds.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2585–2591, November, 1988.
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Reznikov, V.A., Volodarskii, L.B. Synthesis of enaminothiocarbonyl compounds (imidazolidine nitroxyl radicals) and their reactions with sodium hypobromite. Russ Chem Bull 37, 2331–2336 (1988). https://doi.org/10.1007/BF00959890
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DOI: https://doi.org/10.1007/BF00959890