154479-69-3Relevant academic research and scientific papers
An efficient procedure for the synthesis of polysubstituted pyrroles in an ionic liquid
He, Yan-Hong,Wang, Gang-Qiang,Xu, Ke-Ling,Guan, Zhi
experimental part, p. 191 - 196 (2011/05/07)
The ionic liquid 1-butyl-3-methyl-imidazolium hydrogen sulfate, [bmim]HSO4, was used as a catalyst and reaction medium for the pyrrole synthesis, and a wide range of aliphatic, aromatic, heteroaromatic and carboxylic 1,4-diketones easily underwent condensations with aniline and ethylenediamine to form polysubstituted pyrroles. Sequential decarboxylation/Paal-Knorr pyrrole condensation was observed, which provides a new and facile approach to monoester pyrroles from 1,4-diketo-2,3-dicarboxylic acid esters.
Polycondensed Nitrogen Heterocycles. Part 25. Aminopyrrolophenanthridines by Decomposition of 2-(3-Azidophenyl)-1-arylpyrroles
Almerico, Anna Maria,Cirrincione, Girolamo,Dattolo, Gaetano,Aiello, Enrico,Mingoia, Francesco
, p. 193 - 198 (2007/10/02)
Acid catalyzed decomposition of the azido derivatives 4a-c give rise to amino-hydroxy-phenylpyrroles of type 7 and 8 upon hydrolysis of the intermediate aryl nitrenium ions, together with the hydrogen abstraction compounds of type 3.The aminopyrrolo1,2-f
