Three-Component Bisannulation for the Synthesis of Trifluoromethylated Tetracyclic <i>Aza</i>-Aromatics through Six C(sp<sup>3</sup>)–F Bond Cleavage and Four C–N Bond Formation
作者:Qing-Dong Wang、Ya-Wen Wang、Ting Xie、Yan-Ying Cui、Mengtao Ma、Zhi-Liang Shen、Xue-Qiang Chu
DOI:10.1021/acs.joc.1c00695
日期:2021.6.18
unprecedented and expeditious tandem bisannulation of polyfluoroalkylated tetralones with benzamidines to access various fluoroalkyl tetracyclic [1,3]-diazepines through multiple C–N bond formation and C(sp3)–F bond cleavage is reported. The process features high regio-/chemoselectivities, broad substrate scope, good functional group tolerance, procedural simplicity, mild reaction conditions, and scale-up
据报道,一种前所未有且迅速的多氟烷基四氢萘酮与苯甲脒串联双环化,通过多个 C-N 键形成和 C(sp 3 )-F 键断裂获得各种氟烷基四环 [1,3]-二氮杂。该工艺具有区域选择性/化学选择性高、底物范围广、官能团耐受性好、程序简单、反应条件温和和放大合成等特点。机理研究表明,多氟烷基四氢萘酮独特的氟效应对氮杂-四环结构的构建起着至关重要的作用。