Synthesis and Properties of Symmetric and Unsymmetric Dibenzothienopyrroles

Symmetrical and unsymmetrical heteroacenes containing thiophene and pyrrole rings were synthesized. The unsymmetrical heteroacene was synthesized in two steps involving an unexpected palladium catalyzed amination of alkyl or aryl amines with benzo[b]thiophene followed by a copper catalyzed coupling. The symmetrical heteroacene was obtained by a palladium catalyzed amination reaction and also by a copper catalyzed amidation reaction. The crystal structure, photophysical and electrochemical properties of symmetrical and unsymmetrical heteroacenes are described.

对称与非对称杂芳烃，其中包含噻吩和吡咯环，已被成功合成。非对称杂芳烃的合成分为两步，首先通过一种意想不到的钯催化胺化反应，将烷基或芳基胺与苯并[b]噻吩进行反应，随后进行铜催化的偶联反应。对称杂芳烃的获得则通过钯催化的胺化反应和铜催化的酰胺化反应实现。本文详细描述了对称与非对称杂芳烃的晶体结构、光物理性质和电化学性质。