1,2-Bis- and 1,2,3-tris(2,5-dimethylthiophen-3-yl)azulenes: Synthesis, structure and properties
作者:Andrey G. Lvov、Aleksei Bredihhin、Julia Peet、Anton V. Yadykov、Artem O. Dmitrienko、Valerii Z. Shirinian
DOI:10.1016/j.dyepig.2019.107843
日期:2020.1
The efficient protocols for the synthesis of unique 1,2-bis(2,5-dimethylthiophen-3-yl)azulene and 1,2,3-tris(2,5-dimethylthiophen-3-yl)azulene as potential multi-responsive molecules have been developed. Lack of photoactivity of obtained azulenes was explained by means of DFT calculations and X-ray powder diffraction data. Protonation of the dithienylazulene results in the stable azulenium carbocation
独特的1,2-双(2,5-二甲基噻吩-3-基)azulene和1,2,3-三(2,5-二甲基噻吩-3-基)azulene作为潜在的多响应合成的有效协议分子已被开发出来。通过DFT计算和X射线粉末衍射数据解释了所获得的天青石缺乏光活性。二噻吩基azulene的质子化导致稳定的氮杂碳正离子化,并且其π电子系统(光学性质)可以通过与各种芳香族醛的缩合来不可逆地控制。该性质可用于质子化后基于a唑的材料的电子性质的改变。