Fe-catalyzed three-component dicarbofunctionalization of unactivated alkenes with alkyl halides and Grignard reagents
作者:Lei Liu、Wes Lee、Cassandra R. Youshaw、Mingbin Yuan、Michael B. Geherty、Peter Y. Zavalij、Osvaldo Gutierrez
DOI:10.1039/d0sc02127j
日期:——
reported. The reaction operates under fast turnover frequency and tolerates a diverse range of sp2-hybridized nucleophiles (electron-rich and electron-deficient (hetero)aryl and alkenyl Grignard reagents), alkyl halides (tertiary alkyl iodides/bromides and perfluorinated bromides), and unactivated olefins bearing diverse functional groups including tethered alkenes, ethers, protected alcohols, aldehydes
报道了使用烷基卤化物(碘化物和溴化物)和 sp 2 -杂化格氏试剂对未活化烯烃进行高度化学选择性铁催化的三组分双碳官能化反应。该反应在快速周转频率下运行,并耐受多种 sp 2-杂化亲核试剂(富电子和缺电子(杂)芳基和烯基格氏试剂)、烷基卤化物(叔烷基碘化物/溴化物和全氟化溴化物)和带有不同官能团的未活化烯烃,包括链烯烃、醚、保护醇,醛和胺以产生具有高区域控制的所需 1,2-烷基芳基化产物。此外,我们证明该方案适用于通过三组分自由基级联环化/芳基化合成新的(杂)碳环,包括四氢呋喃和吡咯烷,形成三个新的 C-C 键。