Single precursor for the synthesis of donor and acceptor units of the low band gap polymers: synthesis of benzodithiophene and thienopyrroledione from maleic anhydride
作者:Vinay S. Kadam、Arun L. Patel、Sanjio S. Zade
DOI:10.1016/j.tetlet.2016.04.114
日期:2016.6
(D–A) conjugated polymers. BDT-based polymers were found to be one of the most efficient conjugated polymers for organic photovoltaic application. Synthesis of quinone precursor of the dihydroxybenzothiophene was accomplished by a new and unconventional methodology which includes reaction of 3,4-thiophene dicarboxylate with sodium hydride in THF. Dithienobenzoquinone dicarboxylate and dihydroxybenzodithiophene
开发了一种由马来酸酐合成噻吩-3,4-二羧酸二甲酯的有效途径。噻吩-3,4-二羧酸二甲酯用作合成苯并[1,2- b:4,5- b ']二噻吩(BDT)和噻吩并[3,4- c ]的单一前体]吡咯-4,6-二酮(TPD)衍生物。BDT和TPD衍生物已分别作为供体和受体单元被高度开发,用于合成重要的供体-受体(DA)共轭聚合物。发现基于BDT的聚合物是用于有机光伏应用的最有效的共轭聚合物之一。二羟基苯并噻吩醌前体的合成是通过一种新的非常规方法完成的,该方法包括3,4-噻吩二羧酸盐与氢化钠在THF中的反应。通过单晶X射线衍射对二噻吩并苯醌二羧酸盐和二羟基苯并二噻吩二羧酸盐进行结构表征。两种化合物都显示出很强的π堆积相互作用,并排列在晶体中平行的分子片中。