Abstract
Methods have been developed for the synthesis of new heterocyclic systems, spiro[chromene-4,3′- indoles] and spiro[indole-3,4′-quinolines] by the base-catalyzed domino reaction of isatins with 5,5-dimethylcyclohexane- 1,3-dione (or 5,5-dimethyl-3-anilinocyclohex-2-en-1-one) and ethyl cyanoacetate.
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Original Russian Text © S.A. Pogosyan, Dzh.A. Avakimyan, H.M. Stepanyan, 2016, published in Zhurnal Organicheskoi Khimii, 2016, Vol. 52, No. 9, pp. 1320–1323.
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Pogosyan, S.A., Avakimyan, D.A. & Stepanyan, H.M. Synthesis of new heterocyclic systems—substituted spiro[chromene-4,3′-indoles] and spiro[indole-3,4′-quinolines]. Russ J Org Chem 52, 1308–1311 (2016). https://doi.org/10.1134/S1070428016090098
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DOI: https://doi.org/10.1134/S1070428016090098