One-pot four-component synthesis of highly substituted pyrroles in gluconic acid aqueous solution
                                
                                    
                                        作者:Bao-Le Li、Pei-He Li、Xue-Na Fang、Chun-Xiao Li、Jing-Lei Sun、Li-Ping Mo、Zhan-Hui Zhang                                    
                                    
                                        DOI:10.1016/j.tet.2013.06.049
                                    
                                    
                                        日期:2013.8
                                    
                                    Four-component coupling of amines, aldehydes, 1,3-dicarbonyl compounds, and nitromethane has been achieved in gluconic acid aqueous solution (GAAS) to produce polysubstituted pyrroles in high yield. Gluconic acid aqueous solution could be recycled and reused several times without significant loss of its efficiency. (C) 2013 Elsevier Ltd. All rights reserved.