Tertiary Amines as Temporary Masked Secondary Amines: A Direct Access to 5-Dialkylamino-1,2,4-oxadiazoles from 1,2,4-Oxadiazol-5(4H)-ones
                                
                                    
                                        作者:Wong Phakhodee、Muh Alfliadhi、Mookda Pattarawarapan、Surat Hongsibsong、Nittaya Wiriya                                    
                                    
                                        DOI:10.1055/s-0042-1751555
                                    
                                    
                                        日期:2024.5
                                    
                                    tertiary amines as temporary masked secondary amines to synthesize 5-dialkylamino 1,2,4-oxadiazoles via Ph3P-I2 mediated amination of 1,2,4-oxadiazol-5(4H)-ones was developed. A one-step N-dealkylative functionalization of tertiary amines with the 1,2,4-oxadiazole ring enables a convenient access to diverse 5-amino-1,2,4-oxadiazoles. Additionally, orthogonally functionalized piperazine derivatives can be