dimethine, meso substituted tetramethine and styryl cyanine dyes incorporating pyrazolo (4,5-b) indolizine (benzoindolizine) nuclei were prepared. Structural confirmation was carried out by elemental analyses, IR, H-NMR, mass spectra and 13C-NMR with the aid of carbon DEPT spectral data. The visible absorption spectra for the newly synthesized cyanines were examined in 95% ethanol.
制备了含有
吡唑(4,5-b)中氮
茚(benzoindolizine)核的新型不对称N-桥头
染料、apo(zeromethine)、单次甲基、二甲基、内消旋取代的四甲基和
苯乙烯基
花青染料。借助碳
DEPT 光谱数据,通过元素分析、IR、H-NMR、质谱和 13C-NMR 进行结构确认。在 95%
乙醇中检查了新合成的
花青的可见吸收光谱。