Cycloaddition of C,C-Disubstituted Ketonitrones with Acceptor Methylenecyclopropanes and Subsequent Rearrangement Cascade of 5-Spirocyclopropane-isoxazolidines
作者:Tung Q. Tran、Vyacheslav V. Diev、Galina L. Starova、Vladislav V. Gurzhiy、Alexander P. Molchanov
DOI:10.1002/ejoc.201200039
日期:2012.4
A new reaction cascade to give tricyclic cores of 2,4-dihydro-1H-azeto[1,2-a]quinolines (benzocarbacephems) and pyrrolo[1,2-a]quinolines starting from acyclic N-aryl ketonitrones and acceptor ring substituted methylenecyclopropanes has been reported. This reaction includes 1,3-dipolar cycloaddition of N-aryl-C,C-diaryl or N-aryl-C,C-bis(methoxycarbonyl) nitrones 1 to the double bond of dimethyl me
Oxidation of reaction products of p-aryl-С,С-disubstituted nitrones and dimethyl 3-methylenecyclopropane-1,2-dicarboxylate
作者:A. P. Molchanov、T. Q. Tran、A. V. Stepakov、R. R. Kostikov
DOI:10.1134/s1070428016110099
日期:2016.11
Oxidation with 2,3-dichloro-4,5-dicyanobenzoquinone of 2,4-dihydro-1Н-azeto[1,2-a]quinoline-3,4 -dicarboxylates obtained in the reaction of N-aryl-С,С-disubstituted nitrones with Feist’s acid ester resulted in the formation of 2-vinylquinoline-3,4-dicarboxylates in good yields.