Sha Li, Jiaxi Tan, Xiaofang Li
Dec 1, 2020
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Journal
Russian Journal of General Chemistry
Abstract
The 1,3-dipolar cycloaddition reaction of (E)-5-arylmethylidene-1-phenyl-1,5,6,7-tetrahydro-4H-indazol-4-one with azomethine ylide which has been generated in situ by the reaction of 11H-indeno[1,2-b]quinoxalin-11-one and L-proline gives novel 1′-aryl-1-phenyl-5′,6,6′,7,7′,7a′-hexahydro-1′H-dispiro[indazole-5,2′-pyrrolizine-3′,11′′-indeno[1,2-b]quinoxalin]-4(1H)-one derivatives in good yields. Structures of the products are characterized by IR, NMR, and HRMS spectral methods and X-ray crystallographic analysis.