作者:Adriano Bauer、Giovanni Di Mauro、Jing Li、Nuno Maulide
DOI:10.1002/anie.202007439
日期:2020.10.5
nucleophiles is often associated with umpolung and cationic mechanisms. Herein, we report a general process converting a range of ketone derivatives into α‐cyclopropanated ketones by oxidative umpolung. Mechanistic investigation and careful characterization of side products revealed that the reaction follows an unexpected pathway and suggests the intermediacy of non‐classical carbocations.
碘 (III) 试剂对亲核试剂的反应性通常与 umpolung 和阳离子机制有关。在此,我们报告了通过氧化 umpolung 将一系列酮衍生物转化为 α-环丙烷化酮的一般过程。对副产物的机理研究和仔细表征表明,该反应遵循意想不到的途径,并表明非经典碳正离子的中间体。