Abstract
Ethyl 1-oxaspiro[2,5]octane-2-carboxylate reacts with diethyl sodiomalonate in toluene to give diethyl 2-oxo-1-oxaspiro[4,5]decane-3,4-dicarboxylate, which on distillation under goes partial de-ethoxycarbonylation to give ethyl 2-oxo-1-oxaspiro[4,5]decane-4-carboxylate.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 28–32, January, 1991.
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Kuroyan, R.A., Pogosyan, S.A., Grigoryan, N.P. et al. Synthesis and structure of diethyl 2-oxo-1-oxaspiro[4,5]decane-3,4-dicarboxylate. Chem Heterocycl Compd 27, 23–26 (1991). https://doi.org/10.1007/BF00633209
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DOI: https://doi.org/10.1007/BF00633209