Abstract
3-Methyl-2′,5-dioxo-5′-phenyl-1′,2′,5,10-tetrahydrospiro(indeno[1,2-b]isoxazolo[4,3-e]pyridine-4,3′-pyrroles) and 2′,5-dioxo-5′-phenyl-1′,2′,5,10-tetrahydro-1H-spiro(indeno[1,2-b]pyrazole[4,3-e]pyridine-4,3′-pyrroles) are formed via three-component spiro heterocyclization of 4-(ethoxycarbonyl)-5-phenyl-1Hpyrrole-2,3-diones and indane-1,3-dione with 5-amino-3-methylisoxazole or 5-amino-1H-pyrazoles.
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Russian Text © The Author(s), 2019, published in Zhurnal Organicheskoi Khimii, 2019, Vol. 55, No. 5, pp. 748–753.
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Salnikova, T.V., Dmitriev, M.V. & Maslivets, A.N. Three-Component Spiro Heterocyclization of Pyrrolediones, Indane-1,3-dione, and Heterocyclic Enamines. Russ J Org Chem 55, 650–654 (2019). https://doi.org/10.1134/S1070428019050117
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DOI: https://doi.org/10.1134/S1070428019050117