Diels-Alder反应是有机化学中众所周知的[4 + 2]环加成反应,由于它可以实现并入更多的氧化还原基团和扩展其功能,因此在本文中被用作制备高性能有机电极材料的有效方法。 π系统一步一步。作为证明的概念一个例子中,我们报道了hexalithium苯并[GHI]苝hexacarboxylate(栗6 -BPHC)通过公知的有机负极材料,四锂苝四羧酸酯(Li的横向延伸4 -PTC),经由简便的Diels-Alder反应已被证明不仅可以在280 mA g -1的电流密度下每个分子存储近六个电子,而且在100个循环中具有高度稳定的循环性能。
Room-Temperature Columnar Liquid-Crystalline Perylene Imido-Diesters by a Homogeneous One-Pot Imidification-Esterification of Perylene-3,4,9,10-tetracarboxylic Dianhydride
The reaction of PTCDA (perylene-3,4,9,10-tetracarboxylicdianhydride) with an alcohol, a bromoalkane, and an alkylamine in the presence of DBU in DMF yields imido-diestersubstituted perylenes. The reaction is limited to polar alcohols such as propanol, but longer alkyl chains are efficiently introduced in a second step by alkyl group exchange by using selective acidic ester hydrolysis that leaves the
Bilaterally extended perylenes were synthesized, characterized, and used to create organic light‐emitting devices. A detailed investigation of the electronic and optical properties, and a comparison of perylene derivatives and compounds with unilaterally and bilaterally extended aromaticcores, reveal unexpected changes of the absorption spectrum, which are in agreement with simulations based on DFT
Reactions of HDDA-Derived Benzynes with Perylenes: Rapid Construction of Polycyclic Aromatic Compounds
作者:Feng Xu、Xiao Xiao、Thomas R. Hoye
DOI:10.1021/acs.orglett.6b02878
日期:2016.11.4
Benzynes produced by the thermal cycloisomerization of tetrayne substrates [i.e., by the hexadehydro-Diels–Alder (HDDA) reaction] react with perylenes to produce novel naphthoperylene derivatives. Cyclic voltammetry and absorption and emission properties of these compounds are described. DFT studies shed additional light on the dearomatization that accompanies the reaction as well as some of the spectroscopic