Vinylation of Nitro-Substituted Indoles, Quinolinones, and Anilides with Grignard Reagents
作者:Riccardo Egris、Mercedes Villacampa、J. Carlos Menéndez
DOI:10.1002/chem.200901322
日期:2009.10.19
that is different from the initially expected Bartoli indole synthesis. Thus, instead of giving fused indole derivatives, these reactions provide a very mild and efficient new procedure for the synthesis of synthetically relevant aromatic systems containing an o‐nitrovinyl moiety, such as 5‐nitro‐4‐vinylindoles, 6‐nitro‐7‐vinylindoles, 6‐nitro‐5‐vinyl‐2(1H)quinolinones, and 4‐nitro‐3‐vinylanilines.
乙烯基格利雅试剂与反应ö -methoxynitroarenes含有电子释放取代基对位通过一个路径,其是从最初的预期Bartoli吲哚合成不同的硝基进行。因此,这些反应并没有给出稠合的吲哚衍生物,而是提供了一种非常温和有效的新方法,用于合成含有邻硝基乙烯基部分的合成相关芳族体系,例如5-硝基-4-乙烯基吲哚,6-硝基-7-硝基。乙烯基吲哚,6-硝基-5-乙烯基-2-(1 H)喹啉酮和4-硝基-3-乙烯基苯胺。