作者:Christian Klinger、Otto Vostrowsky、Andreas Hirsch
DOI:10.1002/ejoc.200500851
日期:2006.3
Alkylene chains with up to 40 methylene groups were employed. The two terminal acetylene functions were introduced prior to the oligoyne elongation by twofold introduction of additional C2-acetylene or C4-butadiyne building blocks. The final step was the intramolecular acetylene coupling upon which very large macrocycles with up to 62 ring members containing segregated sp-, sp2- and sp3-segments were formed
报道了用于制备由亚烷基桥稳定的低聚炔的一般合成路线。相应的大环包含具有多达八个共轭三键的低聚炔。共轭sp-寡炔棒的稳定是通过庞大的末端苯基端盖跨越亚烷基链来隔离单个炔棒并避免聚合来实现的。使用最多具有 40 个亚甲基的亚烷基链。通过双重引入额外的 C2-乙炔或 C4-丁二炔结构单元,在低聚炔延伸之前引入两个末端乙炔官能团。最后一步是分子内乙炔偶联,在此偶联上形成了具有多达 62 个环成员的非常大的大环,其中包含分离的 sp-、sp2-和 sp3-链段。(© Wiley-VCH Verlag GmbH & Co. KGaA,