Synthesis of Water‐Soluble Blue‐Emissive Tricyclic 2‐Aminopyridinium Salts by Three‐Component Coupling‐(3+3)‐Anellation
作者:Olga Bakulina、Franziska K. Merkt、Tim‐Oliver Knedel、Christoph Janiak、Thomas J. J. Müller
DOI:10.1002/anie.201808665
日期:2018.12.21
The (3+3) anellation of alkynones and cyclic amidines is a novel and unexpected approach to generate intensively blue luminescent tricyclic 2‐aminopyridinium salts with quantum yields Φf up to 63 % in water. By implementation into a consecutive three‐component reaction, these title compounds are obtained rapidly and efficiently in a diversity‐oriented fashion. Most interestingly, these bi‐ and tricyclic
alkynones和环脒的(3 + 3)anellation是产生量子产率强烈蓝色发光三环2-氨基吡啶盐的新型的和意想不到的方式φ ˚F高达63%的水。通过实施为连续的三组分反应,可以快速,有效地以面向多样性的方式获得这些标题化合物。最有趣的是,这些二环和三环2-氨基吡啶鎓盐在二氯甲烷和水溶液中发出,因此使其成为用于生物分析以及固态的有趣新型发光体探针,从而使其具有可调效率的蓝色发射体。