A New Iterative Approach for the Synthesis of Oligo(phenyleneethynediyl) Derivatives and Its Application for the Preparation of Fullerene?Oligo(phenyleneethynediyl) Conjugates as Active Photovoltaic Materials
作者:Jean-Fran�ois Nierengarten、Tao Gu、Georges Hadziioannou、Dimitris Tsamouras、Victor Krasnikov
DOI:10.1002/hlca.200490266
日期:2004.11
to give the centrosymmetrical OPE pentamer 20 (Scheme 5). Subsequent reduction followed by reaction of the resulting diol 21 with acid 22 under esterification conditions led to bis-malonate 23. Oxidative coupling of terminal alkyne 14 with the Hay catalyst gave bis-aldehyde 24 (Scheme 6). Treatment with diisobutylaluminium hydride followed by dicylcohexylcarbodiimide-mediated esterification with acid
使用以下反应顺序,通过迭代方法由2,5-双(辛氧基)-4-[(三异丙基甲硅烷基)乙炔基]苯甲醛(5)制备双对称取代的oligo(phenyleneethynediyl)(OPE)衍生物:i)Corey-Fuchs二溴代烯烃反应,ii)用过量的二异丙基氨基锂处理,和iii)将所得的末端炔与2,5-二碘-1,4-双(辛氧基)苯(3)进行金属催化的交叉偶联反应(方案2和3)。3)。如此获得的OPE二聚体8和三聚体13与N-甲基甘氨酸和C 60的反应在回流的甲苯中分别得到相应的C 60 OPE共轭物16和17(方案4)。另一方面,用Bu 4 N处理受保护的末端炔烃8和13,然后使所得的9和14与4-碘-N,N-二丁基苯胺在Sonogashira条件下反应,分别得到10和15(方案2和3)。3)。随后用N-甲基甘氨酸和C 60进行治疗在回流的甲苯中,提供了C 60 OPE衍生物18和19(方案4)。