作者:Chitoshi Kitamura、Chika Matsumoto、Akio Yoneda、Takashi Kobayashi、Hiroyoshi Naito、Toshiki Komatsu
DOI:10.1002/ejoc.201000112
日期:2010.5
We synthesized 1,4-dipropyltetracene on a 200-mg scale, the key step of which involved a Diels-Alder reaction between alkyl-substituted o-quinodimethane, generated in situ, and 1,4-naphthoquinone. The product was obtained as an orange solid, which was soluble in organic solvents including hexane. The optical properties of the product in solution showed no marked differences from those of other 1,4
我们以 200 毫克的规模合成了 1,4-二丙基并四苯,其关键步骤涉及原位生成的烷基取代的邻醌二甲烷和 1,4-萘醌之间的 Diels-Alder 反应。获得橙色固体产物,其可溶于包括己烷在内的有机溶剂中。溶液中产物的光学性质与其他1,4,7,10-四烷基并四苯的光学性质没有明显差异。与 1,4,7,10-四丙基并四苯相比,固态吸收和荧光光谱表现出 20-30 nm 的蓝移。X射线分析表明,两个丙基与并四苯环共面,沿堆积方向没有π重叠,分子形成人字形结构。