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 |
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| Authors: | P. S. Silaichev N. V. Kudrevatykh A. N. Maslivets |
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| Affiliation: | 1. Institute of Natural Sciences at Perm State University, Perm, 614990, Russia
2. Perm State University, Perm, Russia
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| 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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