A new series of rod-like conjugated molecules with a pyrazine or a bipyrazine core. Synthesis and light emitting properties
作者:Nordine Hebbar、Catherine Fiol-Petit、Yvan Ramondenc、Gérard Plé、Nelly Plé
DOI:10.1016/j.tet.2011.01.068
日期:2011.3
paper, we describe the synthesis of a wide range of new rod-like conjugated molecules with a pyrazine or a bipyrazine core connected to electron acceptor (A) or donor (D) groups through π-conjugated bridges as transmitters for the internal charge transfer (ICT). The key steps of the synthesis involve metallation and subsequent transmetallation of 2-chloropyrazine derivatives followed by Sonogashira
在本文中,我们描述了范围广泛的新型棒状共轭分子的合成,其中吡嗪或联吡嗪核通过π共轭桥连接到电子受体(A)或施主(D)组作为内部电荷的发射体传输(ICT)。合成的关键步骤涉及2-氯吡嗪衍生物的金属化和随后的金属转移,然后进行Sonogashira或Negishi交叉偶联反应。通过2-氯-6-三丁基苯乙烯吡嗪和2-氯-6-碘吡嗪之间的斯蒂勒交叉偶联反应获得联吡嗪核。通过金属化,过渡金属化和交叉偶联反应进行6,6'-dichloro-2,2'-联吡嗪的官能化。然后根据吸收光谱和发射光谱研究如此获得的分子的发光性质。