Efficient, High-Yield Route to Long, Functionalized <i>p</i>-Phenylene Oligomers Containing Perfluorinated Segments, and Their Cyclodimerizations by Zirconocene Coupling
作者:Jonathan R. Nitschke、T. Don Tilley
DOI:10.1021/ja011018s
日期:2001.10.1
sterically hindered substrates and in the presence of base-sensitive silylalkynyl groups. Diynes synthesized by this methodology were readily zirconocene-coupled into large dimeric macrocycles using the zirconocene reagent Cp(2)Zr(py)(Me(3)SiC triple bond CSiMe(3)).
使用芳基锂试剂对全氟芳烃的亲核芳香取代 (S(N)Ar) 作为关键的碳-碳键形成反应,以高产率合成了含有 6、9 和 12 个亚苯基环的线性低聚苯二炔。证明该反应在低温下容易进行,具有空间位阻底物,并且存在碱敏感的甲硅烷基炔基。通过这种方法合成的二炔很容易使用二茂锆试剂 Cp(2)Zr(py)(Me(3)SiC 三键 CSiMe(3)) 偶联成大二聚体大环。