Synthesis of functionalized 2,2′- and 2,3′-bipyrroles via 3-imino-3H-pyrrolizine-2-carbonitriles
作者:Olga V. Petrova、Elena F. Sagitova、Lyubov N. Sobenina、Igor A. Ushakov、Tat′yana N. Borodina、Vladimir I. Smirnov、Boris A. Trofimov
DOI:10.1016/j.tetlet.2016.07.006
日期:2016.8
A novel strategy for the synthesis of 4-amino-3-cyano-2,2′- and 5′-amino-4′-cyano-2,3′-bipyrroles via readily available 1-amino-3-imino-3H-pyrrolizine-2-carbonitriles has been developed. The rearrangement leading to 5′-amino-4′-cyano-2,3′-bipyrroles involves formation of the intermediate aziridine, which undergoes other side ring-opening.
Pyrrole-2-dithiocarboxylates: Synthesis of 2-(1-Alkylthio-2-cyanoethenyl)pyrroles
作者:Lubov N. Sobenina、Albina I. Mikhaleva、Maria P. Sergeeva、Olga V. Petrova、Tamara N. Aksamentova、Olga B. Kozyreva、Darya-S.D. Toryashinova、Boris A. Trofimov
DOI:10.1016/0040-4020(95)00149-3
日期:1995.4
2-(1-Alkylthio-2-cyanoethenyl)pyrroles were synthesized in good to high yields by reaction of pyrrole-2-dithiocarboxylates with active methylene nitriles in a KOH-DMSO medium. The condensation of 4,5,6,7-tetrahydroindole with cyanoacetate also leads to 1-ethylthio-2-cyano-4,5,6,7-tetrahydrocyclohexa-[c]-3H-pyrrolizin-3-one in 61% yield. The effect of substituent on the reaction course has been studied
Synthesis and redox properties of pyrroledithiocarboxylic acid esters
作者:L. N. Sobenina、L. E. Protasova、M. P. Sergeeva、O. V. Petrova、T. N. Aksamentova、O. B. Kozyreva、R. I. Polovnikova、A. I. Mikhaleva、B. A. Trofimov
DOI:10.1007/bf01171288
日期:1995.1
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作者:L. N. Sobenina、A. P. Demenev、A. I. Mikhaleva、I. A. Ushakov、A. V. Afonin、S. G. D'yachkova、E. A. Beskrylaya、L. A. Oparina、V. N. Elokhina、K. A. Volkova、O. V. Petrova、B. A. Trofimov