Application of the Palladium-Catalysed Norbornene-Assisted Catellani Reaction Towards the Total Synthesis of (+)-Linoxepin and Isolinoxepin
作者:Zafar Qureshi、Harald Weinstabl、Marcel Suhartono、Hongqiang Liu、Pierre Thesmar、Mark Lautens
DOI:10.1002/ejoc.201402218
日期:2014.7
the reliable and scalable synthesis of architecturally complex scaffolds. This report outlines the synthetic approaches towards this interesting class of biologically active molecules. After the key Catellani/Heck reaction, our synthesis features a Leimeux-Johnson oxidation and a titanium tetrachloride mediated aldol condensation. Finally, a tuneable Mizoroki-Heck reaction was performed to furnish not
我们不断努力开发高选择性过渡金属催化的 CH 活化过程,从而扩大了 Catellani 反应。在 Pd-0/Pd-II/Pd-IV 催化的多米诺反应中,芳基碘、烷基碘和丙烯酸叔丁酯结合合成了新型木脂素 (+)-linoxepin 的碳骨架。对映选择性合成突出了我们小组完成的工作,并为结构复杂的支架的可靠和可扩展合成提供了极好的程序。本报告概述了此类有趣的生物活性分子的合成方法。在关键的 Catellani/Heck 反应之后,我们的合成具有 Leimeux-Johnson 氧化和四氯化钛介导的羟醛缩合。最后,