Synthesis of Functionalized Pyrroles via Catalyst- and Solvent-Free Sequential Three-Component Enamine−Azoene Annulation
作者:Orazio A. Attanasi、Gianfranco Favi、Fabio Mantellini、Giada Moscatelli、Stefania Santeusanio
DOI:10.1021/jo200287k
日期:2011.4.15
A new and efficient synthesis of polysubstituted pyrroles by a sequential one-pot three-componentreaction between primary aliphatic amines, active methylene compounds, and 1,2-diaza-1,3-dienes (DDs) is reported. The reactions were performed without catalyst and under solvent-free conditions with complete control of pathway selectivity. Notably, the ready availability of the starting materials and
Synthesis of Polysubstituted Pyrroles via PhI(OAc)2-Mediated Oxidative Coupling of Enamine Esters and Ketones
作者:Wei Yu、Jun-Yan Wang、Su-Ping Liu
DOI:10.1055/s-0029-1217743
日期:2009.9
Enamine esters or ketones could undergo homocoupling by the action of (diacetoxyiodo)benzene in the presence of BF 3 -OEt 2 , giving rise to pyrrole products. This reaction could be used to synthesize symmetric polysubstituted pyrroles. Some asymmetric polysubstituted pyrroles could also be prepared using this protocol.
The Synthesis of Polysubstituted Pyrroles<i>via</i>the Coupling of Phenyliodonium Ylides and Enamine Esters
作者:Jun-Yan Wang、Xian-Pei Wang、Zheng-Sen Yu、Wei Yu
DOI:10.1002/adsc.200900379
日期:2009.9
The boron trifluoride etherate (BF3⋅Et2O)-catalyzed reactions between phenyliodonium ylides and enamine esters provide an efficient method for the synthesis of polysubstituted pyrroles.
EILENBERG, W.;SCHAEFER, H. J., TETRAHEDRON LETT., 1984, 25, N 44, 5023-5026
作者:EILENBERG, W.、SCHAEFER, H. J.
DOI:——
日期:——
Synthesis of Polysubstituted Pyrroles through Electro-Oxidative Annulation of 1,3-Dicarbonyl Compounds and Primary Amines
作者:Mingteng Xiong、Xiao Liang、Yifeng Zhou、Yuanjiang Pan
DOI:10.1021/acs.joc.0c02911
日期:2021.4.2
herein is a synthetic method of polysubstituted pyrroles from easily available materials, 1,3-dicarbonyl compounds and primary amines, via electro-oxidative intermolecular annulation. Under similar conditions, enamines are also converted smoothly into desired products, indicating that in situ formed enamines are crucial intermediates for the first transformation. Neither transition-metal salts nor harsh