名称:
                                Facile Synthesis of 1-Amino[1,3,5]triazino[1,2a]-benzimidazolo-2-one and Pyrimidino[1,2a]benzimidazolo-4-one Derivatives
                             
                            
                                摘要:
                                N-(1-Carboethoxy-benzimidazol-2-yl) 1 reacted with different hydrazines to give [1,3,5]triazino[1,2a]benzimidazole derivatives 2. Treatment of compound 1 with tBuOK and EtONa yielded pyrimidino[1,2a]benzimidazole derivatives 3 in good yields.
                             
                                                            
                                    DOI:
                                    10.1080/00397911.2010.515366