High-Yielding Synthesis and Full Spectroscopic Characterization of 5,6:11,12-Di-<i>o</i>-phenylenetetracene and Its Synthesis Intermediates
作者:Tobias Wombacher、Sabine Foro、Jörg J. Schneider
DOI:10.1002/ejoc.201501228
日期:2016.1
Herein we present a synthetic gram-scale route to 5,6:11,12-di-o-phenylenetetracene (DOPT, 8), which is a member of the class of cyclopenta-fused polycyclic aromatic hydrocarbons (CP-PAHs). Full analytical characterization of the title compound was carried out by IR, Raman, UV/Vis, and high-field 1H NMR spectroscopy, as well as by mass spectrometry. A unique double-elimination of phenylide moieties
在这里,我们提出了一种合成克级路线,以 5,6:11,12-二邻苯并并四苯 (DOPT, 8),这是环五稠合多环芳烃 (CP-PAHs) 类的成员。通过 IR、拉曼、UV/Vis 和高场 1 H NMR 光谱以及质谱法对标题化合物进行了全面的分析表征。作为关键反应步骤,独特的苯基部分双消除首次以高纯度和 >70% 的分离产率获得了 DOPT。在从 DOPT 前体中还原消除两个苯基后,环状 π 环系统发生再芳构化。讨论了该过程的两种替代反应途径。本文所述的合成方法可允许进一步开发标题化合物的化学,例如,