M. Dmitriev, P. Silaichev, T. V. Sal’nikova
Jul 15, 2015
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Journal
Russian Journal of Organic Chemistry
Abstract
Abstract5-Phenyl-1H-pyrrole-2,3-diones reacted with malononitrile and 1H-pyrazole-5(4H)-ones to give substituted 6-amino-5-cyano-2′-oxo-5′-phenyl-1′,2′-dihydro-1H-spiro[pyrano[2,3-c]pyrazole-4,3′-pyrroles]. The crystal and molecular structures of ethyl 6-amino-1,1′-dibenzyl-5-cyano-3-methyl-2′-oxo-5′-phenyl-1′,2′-dihydro-1H-spiro[pyrano[2,3-c]pyrazole-4,3′-pyrrole]-4′-carboxylate were determined by X-ray analysis.