Synthesis of all-syn Functionalized Triphenylene Ketals
作者:Nader M. Boshta、Martin Bomkamp、Gregor Schnakenburg、Siegfried R. Waldvogel
DOI:10.1002/ejoc.201001699
日期:2011.4
The stereoselective synthesis of triphenylene ketals offers access to unique scaffolds. For a good performance in supramolecular applications an all-syn orientation of the functional groups is essential. The oxidative trimerization of catechol ketals by molybdenum pentachloride or mixtures with titanium tetrachloride leads to a template-directed formation. Several heterocyclic moieties are suitable
三亚苯基缩酮的立体选择性合成提供了获得独特支架的途径。为了在超分子应用中获得良好的性能,官能团的全同步方向是必不可少的。五氯化钼或与四氯化钛的混合物对儿茶酚缩酮的氧化三聚导致模板导向的形成。几个杂环部分适用于这种转化。在两种情况下证明了模板导向的反、反、同分异构体异构化为所需的 C 3 对称衍生物。