Ethoxymethylene derivatives of 2,4-pentanedione (Ia), 3-oxobutanenitrile (Ib), methyl (Ic) or ethyl (Id) 3-oxobutanoate give with 4- or 5-aminobenzimidazole or benzotriazole, respectively, under mild conditions products of nucleophilic substitution II-V. Structure of these compounds was discussed on the basis of their spectral measurements - IR, UV, 1H, 13C NMR and mass spectra.
2,4-戊二酮的乙氧甲基衍生物(Ia),3-氧代丁腈(Ib),甲基(Ic)或乙基(Id)3-氧代丁酸酯与4-或5-氨基苯并咪唑或苯并三唑,在温和条件下,通过亲核取代反应得到产物II-V。这些化合物的结构是基于它们的光谱测量 - 红外光谱、紫外光谱、1H、13C核磁共振和质谱进行讨论的。