Regio- and chemoselective synthesis of polyaryl flavones by combination of C-O/C-H activation and Suzuki-Miyaura cross coupling reactions
作者:Edgar Schaeffer、Nathasha C. de Oliveira、Yasmin Pestana、Marina A. Alves、Alcides J.M. da Silva
DOI:10.1016/j.molstruc.2023.137067
日期:2024.3
8-aryl substituted flavones were prepared through Ru-, Ni- and Pd-catalyzed coupling reactions with aryl boronic species under regio- and chemoselective approach in moderate to excellent yields. The obtained derivatives were thoroughly characterized by spectroscopic techniques, such as 1H NMR, 13C NMR and HRMS data. The convenient availability of starting natural product chrysin confers facility to the
报道了黄酮衍生化合物的第一个区域选择性钌催化芳基化。探索分子结构-反应性,通过Ru、Ni和Pd催化与芳基的偶联反应制备不同的5-,5,8-,5,7-,5,6-和5,7,8-芳基取代黄酮区域选择性和化学选择性方法下的硼物种具有中等至优异的产量。所获得的衍生物通过光谱技术(例如1 H NMR、13 C NMR 和 HRMS 数据)进行了彻底表征。起始天然产物白杨素的方便获得为所采用的反应提供了便利,这些产品可以在制药和材料科学领域得到应用。