Copper(0)/Selectfluor System-Promoted Oxidative Carbon–Carbon Bond Cleavage/Annulation of <i>o</i>-Aryl Chalcones: An Unexpected Synthesis of 9,10-Phenanthraquinone Derivatives
作者:Hanyang Bao、Zheng Xu、Degui Wu、Haifeng Zhang、Hongwei Jin、Yunkui Liu
DOI:10.1021/acs.joc.6b02212
日期:2017.1.6
A general and efficient protocol for the synthesis of 9,10-phenanthraquinone derivatives has been successfully developed involving a copper(0)/Selectfluor system-promoted oxidative carbon–carbonbond cleavage/annulation of o-aryl chalcones. A variety of substituted 9,10-phenanthraquinones were synthesized in moderate to good yields under mild reaction conditions.
Palladium(II)-Catalyzed Tandem γ-C(sp2)–H Arylation and Cyclization for the Construction of Natural Product-Like Polycyclic Fused ortho-Quinone Scaffolds
作者:Xingjun Li、Yu Chen、Xiong Xie、Jing Li、Jiang Wang、Hong Liu
DOI:10.1021/acs.orglett.4c00900
日期:2024.4.26
a novel strategy for the direct construction of polycyclic fused ortho-quinone scaffolds through palladium(II)-catalyzedtandem γ-C(sp2)–H arylation and cyclization of arylglyoxals with aryl iodides. This transformation features unique tandem transient directing of γ-C(sp2)–H arylation and cyclization reaction mode, broad substrate scope, especially for the aromatic substrates containing oxygen and