作者:Anusha Tumuluri、Bhanupriya Khanna、Ammar Altalib、Kevin Revell
DOI:10.2174/1570178612666150203004458
日期:2015.5.9
A series of 2,6-bis(arylethynyl)anthraquinones was prepared via double Sonogashira
coupling to 2,6-diiodoanthraquinone, and characterized with regard to their optical and electronic
properties. Substitution with a derivatized phenylethynyl group produced a λonset of 366 nm (Eg = 3.4
eV), but the more highly conjugated 2,6-bis(9’-anthracylethynyl)anthraquinones exhibited a λonset of
approximately 540 nm (Eg = 2.3 eV). Poor solubility in the unsubstituted 9’-anthracylethynyl system
hampered complete characterization or purification, but the 10’-hexanoylanthrac-9’-ylethynyl analog
exhibited significantly better solubility. The preparation of several other functionalized derivatives
was also explored, and key synthetic findings are reported.
通过与 2,6-二碘蒽醌的双 Sonogashira 偶联,制备了一系列 2,6-双(芳基乙炔基)蒽醌,并对其光学和电子特性进行了表征。用衍生化的苯乙炔基取代后,λ波长为 366 nm(Eg = 3.4 eV),但高度共轭的 2,6-双(9'-蒽乙炔基)蒽醌的λ波长约为 540 nm(Eg = 2.3 eV)。未取代的 9'-蒽基乙炔基体系溶解性较差,妨碍了其完整表征或纯化,但 10'-hexanoylanthrac-9'-ylethynyl 类似物的溶解性明显更好。我们还探索了其他几种官能化衍生物的制备方法,并报告了主要的合成发现。