Direct Exchange of a Ketone Methyl or Aryl Group to Another Aryl Group through CC Bond Activation Assisted by Rhodium Chelation
作者:Jingjing Wang、Weiqiang Chen、Sujing Zuo、Lu Liu、Xinrui Zhang、Jianhui Wang
DOI:10.1002/anie.201206693
日期:2012.12.3
Swapped: Commercially available quinolinone derivatives (1 or 2, see scheme) were reacted with arylboronic acids in the presence of a RhI complex to give aryl(quinolin‐8‐yl)methanone products 3 in medium to good yields. A mechanism that involves the in situ oxidation of RhI to RhIII by O2 in the presence of CuI was proposed.
Rhodium(III)-Catalyzed Direct Coupling of Quinoline-8-Carbaldehydes with (Het)Arylboronic Acids for the Synthesis of 8-Aryloylquinolines
作者:Xue-Li Lyu、Shi-Sheng Huang、Yuan-Qiong Huang、Yong-Qiang Li、Hong-Jian Song、Yu-Xiu Liu、Qing-Min Wang
DOI:10.1021/acs.joc.0c01490
日期:2020.8.7
Herein, we describe a method for the synthesis of aryl-(het)aryl ketones by Rh(III)-catalyzed direct coupling between quinoline-8-carbaldehydes and (het)arylboronic acids. The method has a broad substrate scope, a high functional group tolerance, and uses commercially available starting materials. Scale-up of the reaction and subsequent synthesis of tubulin polymerization inhibitor demonstrated its
arylation of quinoline-8-carbaldehydes with either aryl iodides or aryl diazonium salts for the synthesis of aryl quinolinyl ketones. Aryl iodide substituted with an electron-donating group favors the reaction, whereas aryl diazonium salt substituted with an electron-withdrawing group showed excellent reactivity. A range of aryl quinolinyl ketones were synthesized in good-to-excellent yields, with very good