A selective electrochemical way to functionalized 6H-1,3-thiazines and /or pyrroles.
                                
                                    
                                        作者:Abdesselam Abouelfida、Michel Jubault、Jean-Paul Pradere、Jean-Claude Roze、André Tallec                                    
                                    
                                        DOI:10.1016/s0040-4039(00)79687-0
                                    
                                    
                                        日期:1991.5
                                    
                                    4H-1,3-thiazines, easily prepared from 1-thia-3-azabutadienes, appear electroactive in protic medium.  Controlled potential electroreductions of 4H-1,-3-thiazines lead either to substituted 6H-1,3-thiazines or to pyrroles according to the nature of the C-4 substituent and the acidity of the supporting electrolyte.