作者:ANTONY JOSEPH、GANDIKOTA VENKATARAMANA、SETHURAMAN SANKARARAMAN
DOI:10.1007/s12039-012-0263-z
日期:2012.5
Synthesis of dehydrobenzoannulenes (DBAs) with pyrene core from 1,8-diethynylpyrene and 1,3,6,8-tetraethynylpyrene as building blocks is reported. A sequence involving Sonogashira coupling, Corey–Fuchs reaction and oxidative coupling (Eglinton coupling) is used for the synthesis of pyrene-based dehydrobenzoannulenes. Due to the presence of pyrenechromophore these DBAs and their precursors are highly fluorescent and emit in the visible region, due to extended conjugation of the acetylenic units with the pyrene core.
报告以 1,8-二乙炔基芘和 1,3,6,8- 四乙炔基芘为结构单元,合成了以芘为核心的脱氢苯并芘 (DBA)。在合成芘基脱氢化苯并呋喃时,采用了包括 Sonogashira 偶联、Corey-Fuchs 反应和氧化偶联(Eglinton 偶联)的顺序。由于芘色素的存在,这些 DBAs 及其前体具有很强的荧光性,并在可见光区域发光,这是由于乙炔单元与芘核的延伸共轭作用所致。