Iron-Catalyzed Stereospecific Activation of Olefinic C–H Bonds with Grignard Reagent for Synthesis of Substituted Olefins
作者:Laurean Ilies、Sobi Asako、Eiichi Nakamura
DOI:10.1021/ja2017202
日期:2011.5.25
The reaction of an aryl Grignard reagent with a cyclic or acyclic olefin possessing a directing group such as pyridine or imine results in the stereospecific substitution of the olefinic C-H bond syn to the directing group. The reaction takes place smoothly and without isomerization of the product olefin in the presence of a mild oxidant (1,2-dichloro-2-methylpropane) and an aromatic cosolvent. Several
芳基格氏试剂与具有导向基团(例如吡啶或亚胺)的环状或无环烯烃的反应导致烯属 CH 键顺式立体定向取代为导向基团。在温和氧化剂(1,2-二氯-2-甲基丙烷)和芳香族助溶剂的存在下,反应平稳进行且产物烯烃没有异构化。几条证据表明,该反应是通过铁催化的烯烃 CH 键活化而不是氧化性 Mizoroki-Heck 型反应进行的。