Synthesis of derivatives of 5-amino-4-acyl-1,2,3-triazole, 8-azapurine, and 1,2,3-triazolo[4,5-b]pyridin-7-one using N,N-acetals of acylketenes and tosylazide
                                
                                    
                                        作者:M. F. Gordeev、A. V. Komkov、V. S. Bogdanov、V. A. Dorokhov                                    
                                    
                                        DOI:10.1007/bf00962394
                                    
                                    
                                        日期:1990.6
                                    
                                    By reaction of N,N-acetals of acylketenes with tosylazide there were synthesized 5-amino-4-acyl-1,2,3-triazoles substituted at the endo(N1)- or exocyclic nitrogen atom.  Triazoles containing a free NH2 group were used in the synthesis of the corresponding 8-azapurines and 4-acetyl-5-benzoylamino-1,2,3-triazole afforded 2-methyl-2H,4H-1,2,3-triazolo[4,5-b]pyridin-7-one.