Abstract
1-Aryl-4,5-diaroyl-1H-pyrrole-2,3-diones react with alkyl vinyl ethers and 3,4-dihydro-2H-pyran affording 1,4-diaryl-7a-aroyl-6-ethoxy-7,7a-dihydropyrano[4,3-b]pyrrole-2,3(1H,6H)-diones and 1,4-diaryl-9baroyl-1,7,8,9,9a-hexahydro-5aH-pyrano[3′,2′:5,6]pyrano[4,3-b]-pyrrole-2,3-diones respectively.
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Original English Text © P.S. Silaichev, N.V. Kudrevatykh, A.N. Maslivets, 2012, published in Zhurnal Organicheskoi Khimii, 2012, Vol. 48, No. 8, pp. 1106–1108.
For Communication LXXXVI, see [1].
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Silaichev, P.S., Kudrevatykh, N.V. & Maslivets, A.N. Five-membered 2,3-dioxoheterocycles: LXXXVII. [4+2]-cycloaddition of alkyl vinyl ethers and 3,4-dihydro-2H-pyran to 4,5-diaroyl-1 H-pyrrole-2,3-diones. Russ J Org Chem 48, 1103–1106 (2012). https://doi.org/10.1134/S1070428012080118
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DOI: https://doi.org/10.1134/S1070428012080118