A series of new 3-arylazo-6-methyl-2,8,9-triphenyl-8 H-imidazo[1,2- b]pyrazolo[4,3- d]pyridazines was prepared via reaction of hydrazonoyl halides with 3-hydrazonoacetyl-4-cyano-1,5-diphenylpyrazole. The structures of the compounds prepared were confirmed by spectral and elemental analyses. The solvatochromic and substituent effects on the absorption spectra of these azo dyes were interpreted by correlation of absorption frequencies with Kamlet–Taft and Hammett equations, respectively.
通过肼酰卤与 3-肼基乙酰基-4-氰基-1,5-二苯基吡唑反应,制备了一系列新的 3-芳基偶氮-6-甲基-2,8,9-三苯基-8 H-咪唑并[1,2-b]吡唑并[4,3-d]哒嗪。通过光谱和元素分析确认了所制备化合物的结构。通过吸收频率与 Kamlet-Taft 和 Hammett 方程的相关性,分别解释了溶解变色和取代基对这些偶氮染料吸收光谱的影响。