Thermal Reaction of 5-Aryl-6-trifluoromethyl-3,6-dihydro-2H-[1,3,4]oxadiazines Accessing 5-Trifluoromethylimidazoles
                                
                                    
                                        作者:Yasuhiro Kamitori、Tomoko Sekiyama、Etsuji Okada                                    
                                    
                                        DOI:10.3987/com-07-s(w)12
                                    
                                    
                                        日期:——
                                    
                                    Thermal reaction of 5-aryl-6-trifluoromethyl-3,6-dihydro-2H[1,3,4]oxadiazines (2) readily obtainable from 3-aryl-3-dimethylhydrazono-1,1,1-trifluoro-2-propanones (1) afforded 4-aryl-1-methyl-5-trifluoromethylimidazoles (3) in moderate to good yields. Mechanism for this thermal transformation reaction is also discussed.