作者:Lingling Rong、Qiancai Liu、Yingbo Shi、Jie Tang
DOI:10.1039/c0cc05004k
日期:——
A novel approach towards 7b-aryl-indeno[1,2,3-jk]fluorene based on a nitrogen-containing core is reported. The acid-promoted Friedel-Crafts reaction of 9-(2-bromophenyl)-9-fluorenol with carbazole, triphenylamine or triindole afforded 9-(2-bromophenyl)fluorenyl-carbazole, -triphenylamine and -triindole derivatives, which were subsequently converted to 7b-aryl-fluoradenes via palladium-catalyzed intramolecular
报道了一种基于含氮核的7b-芳基-茚并[1,2,3-jk]芴的新方法。9-(2-溴苯基)-9-芴醇与咔唑,三苯胺或三吲哚的酸促进的Friedel-Crafts反应得到9-(2-溴苯基)芴基-咔唑,-三苯胺和-三吲哚衍生物,随后将其转化为7b-芳基-芴基通过钯催化的分子内CH直接芳基化是关键步骤。