Highly Efficient and Expedient Synthesis of 5-Hydroxy-1<i>H</i>-pyrrol-2-(5<i>H</i>)-ones from FeCl<sub>3</sub>-Catalyzed Tandem Intramolecular Enaminic Addition of Tertiary Enamides to Ketones and 1,3-Hydroxy Rearrangement
                                
                                    
                                        作者:Luo Yang、Chuan-Hu Lei、De-Xian Wang、Zhi-Tang Huang、Mei-Xiang Wang                                    
                                    
                                        DOI:10.1021/ol101607z
                                    
                                    
                                        日期:2010.9.3
                                    
                                    Catalyzed by FeCl3 under very mild conditions, tertiary enamides underwent a highly efficient intramolecular enaminic addition reaction to the ketonic carbonyls followed by 1,3-hydroxy rearrangement to produce 5-hydroxy-1H-pyrrol-2(5H)-ones in excellent yields.