Abstract
Ethyl 1-aryl-4,5-dioxo-2-phenyl-4,5-dihydro-1H-pyrrole-3-carboxylates reacted with tetronic acid in boiling anhydrous toluene in the presence of acetic acid to give ethyl 1-aryl-4,4-bis(4-hydroxy-2-oxo-2,5-dihydrofuran-3-yl)-5-oxo-2-phenyl-4,5-dihydro-1H-pyrrole-3-carboxylates.
References
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Dmitriev, M.V., Silaichev, P.S., and Maslivets, A.N., Russ. J. Org. Chem., 2015, vol. 51, p. 746.
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Original Russian Text © A.R. Kamalova, M.V. Dmitriev, T.V. Sal’nikova, A.N. Maslivets, 2018, published in Zhurnal Organicheskoi Khimii, 2018, Vol. 54, No. 6, pp. 941–942.
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Kamalova, A.R., Dmitriev, M.V., Sal’nikova, T.V. et al. Three-Component Reaction of 1H-Pyrrole-2,3-diones with Tetronic Acid. Synthesis of 4,4-Bis(furan-3-yl)pyrroles. Russ J Org Chem 54, 949–950 (2018). https://doi.org/10.1134/S1070428018060210
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DOI: https://doi.org/10.1134/S1070428018060210