First Construction of Benzotellurazepine Ring System, 4-Methoxy-1,5-benzotellurazepines
                                
                                    
                                        作者:Haruki Sashida                                    
                                    
                                        DOI:10.3987/com-98-8111
                                    
                                    
                                        日期:——
                                    
                                    o-Iodopropiolanilides (3) reacted with sodium hydrogen telluride to give 1,5-benzotellurazepinones (5) via intramolecular cyclization of the presumable phenyltellurole intermediates (4). The lactams (5) were converted into the title lactim compounds, 4-methoxy-1,5-benzotellurazepines (7) by treatment with trimethyloxonium tetrafluoroborate.