吡咯并吡咯衍生物的合成及光化学性质研究

Synthesis and Photochemical Property of Pyrrolo Pyrrole Derivatives

近年来,并吡咯化合物的性质研究越来越受到关注,最初人们的关注点仅仅是此类化合物与吲哚的相似性以及它们可能具有的药理活性,但这一类化合物目前已发展成为光子学和有机电子学领域的研究热点。研究表明,吡咯[3,2-b]吡咯类化合物在成膜、光化学、有机发光二极管器件等方面有着良好的应用,通过合理地改变电子供体(D)、电子受体(A)或共轭π桥,可以容易地调节其光学和电子性质。在之前的研究中发现,通过合理的结构设计,并吡咯化合物具有光引发活性,能够引发丙烯酸酯聚合。主要讨论了含不同取代基的四芳基吡咯并吡咯化合物的合成及光化学性质研究,以芳胺、芳醛及2,3-丁二酮为原料,在催化剂和溶剂反应条件下生成目标产物。之后测定并分析其光谱性能,比较和筛选它们的光引发活性,从而有利于并吡咯化合物作为光引发剂应用于光聚合领域。

In recent years,more and more attention has been paid to the properties of fused pyrrole compounds.At first,people only focused on their similarity to 1H-indole and their possible pharmacological activities;however,these compounds have become the focus of research in the field of photonics and organic electronics.The results show that pyrrolo[3,2-b]pyrrole compounds have good applications in film-forming,photochemistry,organic light-emitting diode devices and so on,and the optical and electronic properties can be easily adjusted by reasonably changing the electron donor(D),electron acceptor(A)or conjugatedπbridge.Previous studies have found that through a reasonable structural design,the attained pyrrolo[3,2-b]pyrrole compounds have photo-initiating activity and they can photoinitiate acrylate to polymerize.Herein,the synthesis and photochemical properties of tetraarylpyrrolo[3,2-b]pyrrole compounds with different substituents were discussed,and the target products were produced under the condition of catalyst and solvent used in the reaction.Their photopolymerization activities are compared and screened,which is beneficial to the application of fused pyrrole compounds as photoinitiators in the field of photopolymerization.