Photochemical Synthesis of 1,4-Dicarbonyl Bifluorene Compounds via Oxidative Radical Coupling Using TEMPO as the Oxygen Atom Donor
作者:Jincheng Xu、Aishun Ding、Yanbin Zhang、Hao Guo
DOI:10.1021/acs.joc.0c02781
日期:2021.2.19
visible-light-induced metal-free synthesis of 1,4-dicarbonyl compounds from alkyne-containing aryl iodides via photochemical C–I bond cleavage, intramolecular cyclization, oxidation, and intermolecular radical coupling sequence is reported. TEMPO was employed as the oxygen atom donor in this transformation. This protocol provided a new strategy for the synthesis of 1,4-dicarbonyl bifluorene compounds.
据报道,通过光化学键合,分子内环化,氧化和分子间自由基偶联序列,由含炔烃的芳基碘可见光诱导的无金属合成1,4-二羰基化合物。在该转化中,将TEMPO用作氧原子供体。该方案为1,4-二羰基联芴化合物的合成提供了新的策略。