Facile Formation of Cyclic Aminals through a Brønsted Acid-Promoted Redox Process
                                
                                    
                                        作者:Chen Zhang、Sandip Murarka、Daniel Seidel                                    
                                    
                                        DOI:10.1021/jo802325x
                                    
                                    
                                        日期:2009.1.2
                                    
                                    Cyclic aminals were prepared through a Bronsted acid-promoted reaction. This redox neutral process involves iminium ion formation, 1.5 H-transfer, followed by ring closure.