The reaction of arylidene acetylacetones and ethoxycarbonylacetamides in the presence of triethyl-amine was found to lead to the formation of ethyl 5-acetyl-1-R-4-aryl-6-hydroxy-6-methyl-2-oxo-piperidine-3-carboxylates.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1928-1931.
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Sargsyan, M.S., Hayotsyan, S.S., Khachatryan, A.K. et al. Synthesis of ethyl 5-acetyl-1-R-4-aryl-6-hydroxy-6-methyl-2-oxopiperidine-3-carboxylates. Chem Heterocycl Comp 48, 1805–1808 (2013). https://doi.org/10.1007/s10593-013-1212-6
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DOI: https://doi.org/10.1007/s10593-013-1212-6