Abstract
4-Alkoxymethyl-2-bromo-2-ethoxycarbonylbutanolides were obtained with good yields by the bromination of 4-alkoxymethyl-2-ethoxycarbonylbutanolides with bromine in dry carbon tetrachloride. Reaction of the products with thiourea and aryl-substituted thioureas gave spiroheteryl-fused lactones of a new generation-8-alkoxymethyl-3-amino(arylamino)-7-oxa-4-thia-2-azaspiro[4,4]-2-nonene-1,6-diones.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 510–514, April, 2006.
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Kochikyan, T.V., Samvelyan, M.A., Harutyunyan, V.S. et al. Synthesis of new α-spiroheteryl-fused butanolides. Chem Heterocycl Compd 42, 446–450 (2006). https://doi.org/10.1007/s10593-006-0109-z
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DOI: https://doi.org/10.1007/s10593-006-0109-z