Abstract
Dihydro-2H-1λ6-thiopyran-1,1,3(4H)-trione reacted with N-substituted 2-aminoethanols to give derivatives of a new spiro system, 1-oxa-7λ6-thia-4-azaspiro[4.5]decane-7,7-diones. No spirocyclic product was obtained by the reaction with unsubstituted 2-aminoethanol, but the corresponding enamine was formed as in the reactions with other primary amines.
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Original Russian Text © V.A. Pal’chikov, A.A. Gaponov, R.M. Chabanenko, S.Yu. Mykolenko, 2018, published in Zhurnal Organicheskoi Khimii, 2018, Vol. 54, No. 4, pp. 587–590.
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Pal’chikov, V.A., Gaponov, A.A., Chabanenko, R.M. et al. Synthesis of a New Spiro System: 1-Oxa-7-thia-4-azaspiro[4.5]decane 7,7-Dioxide. Russ J Org Chem 54, 588–592 (2018). https://doi.org/10.1134/S1070428018040127
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DOI: https://doi.org/10.1134/S1070428018040127