Influence of different amino substituents in position 1 and 4 on spectroscopic and acid base properties of 9,10-anthraquinone moiety
作者:Anna Wcisło、Paweł Niedziałkowski、Elżbieta Wnuk、Dorota Zarzeczańska、Tadeusz Ossowski
DOI:10.1016/j.saa.2013.01.085
日期:2013.5
result of alkylation with amino substituents. All the obtained aminoanthraquinone derivatives were characterized by NMR, IR spectroscopy and mass spectrometry. The spectroscopic properties of these compounds were determined by using UV–Vis spectroscopy in acetonitrile, and in the mixture of acetonitrile and methanol at different pH ranges. The effects of various substituents present in the newly developed
通过与氨基取代基的烷基化反应,合成了一系列被不同烷基取代的新型1-氨基和1,4-二氨基-9,10-蒽醌。通过NMR,IR光谱和质谱对所有获得的氨基蒽醌衍生物进行表征。这些化合物的光谱性质是通过使用UV-Vis光谱在乙腈中以及在不同pH范围内的乙腈和甲醇混合物中测定的。新开发的蒽醌衍生物中存在的各种取代基的影响及其在1-氨基蒽醌(1-AAQ)和1,4-二氨基蒽醌中蒽醌部分的羰基氧原子与NH基团的氮原子之间形成氢键的能力(1,4-DAAQ)已研究。另外, 所研究衍生物的光谱行为在很大程度上取决于溶剂-溶质相互作用和溶剂的性质。新的蒽醌的p K a值通过电位滴定法和分光光度滴定法联合测定。