Abstract
Methyl 1-aryl-3-benzoyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with 3-arylamino-5,5-dimethylcyclohex-2-en-1-ones in boiling benzene to give the corresponding 1,1′-diaryl-3′-benzoyl-4′-hydroxy-6,6-dimethyl-1,1′,2,4,5,5′,6,7-octahydrospiro[indole-3,2′-pyrrole]-2,4,5′-triones and 1′-aryl-4-arylamino-3-benzoyl-6′,6′-dimethyl-1′,2′,4′,5′,6′,7′-hexahydro-5H-spiro[furan-2,3′-indole]-2′,4′,5-triones whose structure was proved by X-ray analysis.
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Original Russian Text © Yu.N. Bannikova, A.N. Maslivets, Z.G. Aliev, 2007, published in Zhurnal Organicheskoi Khimii, 2007, Vol. 43, No. 9, pp. 1339–1342.
For communication LIII, see [1].
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Bannikova, Y.N., Maslivets, A.N. & Aliev, Z.G. Five-membered 2,3-dioxo heterocycles: LIV. Double spiro heterocyclization of methyl 1-aryl-3-benzoyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates with 3-arylamino-5,5-dimethylcyclohex-2-en-1-ones. Russ J Org Chem 43, 1334–1337 (2007). https://doi.org/10.1134/S1070428007090126
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DOI: https://doi.org/10.1134/S1070428007090126