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氨基蒽醌与4-溴苯烷基醚在硝基苯中以Cu/CuCl为催化剂,经Ullmann反应得到了8个烷氧基苯氨基蒽醌衍生物,产物通过核磁共振和质谱进行结构表征。将产物作为一种着色剂添加到特定的近晶相液晶中,测定其在后者中的溶解性、储存稳定性以及在液晶显示装置中处于遮盖(磨砂)或透明(清空)状态时的透光度和驱动速度。结果表明,这8个化合物在近晶相液晶中的溶解性都很好,遮盖(磨砂)与透明(清空)状态时的透光度比值也足够大,同时具有响应速度快的特点,可满足近晶相液晶彩色显示的要求。
Aminoanthraquinone and 4-bromophenylalkyl ether in nitrobenzene with Cu / CuCl as catalyst, by Ullmann reaction obtained eight alkoxyphenylamino anthraquinone derivatives, the structure of the product by nuclear magnetic resonance and mass spectrometry structural characterization. The product was added as a coloring agent to a specific smectic liquid crystal, its solubility in the latter, storage stability, and transmittance in a masked (frosted) or clear (emptied) state in a liquid crystal display device were measured Luminosity and drive speed. The results show that the solubility of the eight compounds in smectic liquid crystal is very good, the ratio of transparency when covered (frosted) and transparent (emptied) is also large enough and the response speed is fast Smectic liquid crystal color display requirements.