Toward New Materials for Organic Electroluminescent Devices: Synthesis, Structures, and Properties of a Series of 2,5-Diaryl-3,4-diphenylsiloles
作者:Shigehiro Yamaguchi、Tomonori Endo、Manabu Uchida、Takenori Izumizawa、Kenji Furukawa、Kohei Tamao
DOI:10.1002/(sici)1521-3765(20000502)6:9<1683::aid-chem1683>3.3.co;2-d
日期:2000.5.2
A series of 2,5-diaryl-3,4-diphenylsiloles, with various mono-substituted phenyl groups, extended pi-conjugated groups, and heteroaryl groups as aryl groups at the 2,5-positions, has been prepared by a one-pot synthesis from bis(phenylethynyl)silanes based on the intramolecular reductive cyclization followed by the palladium-catalyzed cross-coupling with aryl halides. Crystal structures and chemical
一系列2,5-二芳基-3,4-二苯基甲硅烷基具有两个不同的单取代苯基基团,扩展的pi共轭基团和杂芳基基团作为2,5位的芳基基团,这些化合物是通过以下方式制备的:基于分子内的还原环化反应,由双(苯基乙炔基)硅烷进行罐合成,然后钯催化与芳基卤化物的交叉偶联。已经研究了对2,5-双(对-单取代苯基)甲硅烷基衍生物的晶体结构和对碱 基甲硅烷基化反应的化学反应性,以阐明对-取代基的作用。2,5-二芳基硅烷的紫外可见吸收光谱和荧光光谱以及循环伏安法已得到系统评估。它们的光物理性质及其电子结构在很大程度上取决于2,5-芳基的性质。