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Five-membered 2,3-dioxo heterocycles: XCIII. Spiro heterocyclization of 4,5-diaroyl-1H-pyrrole-2,3-diones with acyclic enamine. Crystalline and molecular structure of substituted 1,7-diazaspiro[4.4]nonane |
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| Authors: | P S Silaichev N V Kudrevatykh P A Slepukhin A N Maslivets |
| Institution: | 1352. Perm State National Research University, ul. Bukireva 15, Perm, 614990, Russia 2352. Institute of Natural Sciences, Perm State National Research University, ul. Genkelya 4, Perm, 614990, Russia 3352. Postovskii Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, ul. Akademicheskaya/S. Kovalevskoi 22/20, Yekaterinburg, 620990, Russia |
| Abstract: | 4,5-Diaroyl-1-aryl-1H-pyrrole-2,3-diones reacted with ethyl 3-amino-3-phenylprop-2-enoate to give ethyl 4-aroyl-1,6-diaryl-3-hydroxy-2-oxo-8-phenyl-1,7-diazaspiro4.4]nona-3,6,8-triene-9-carboxylates. The crystalline and molecular structures of ethyl 4-benzoyl-3-hydroxy-1-(4-methylphenyl)-2-oxo-6,8-diphenyl-1,7-diazaspiro4.4]nona-3,6,8-triene-9-carboxylate were determined by X-ray analysis. |
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