[EN] SMALL MOLECULE INHIBITORS OF EBOLA AND LASSA FEVER VIRUSES AND METHODS OF USE [FR] INHIBITEURS À PETITES MOLÉCULES DES VIRUS ÉBOLA ET DE LA FIÈVRE DE LASSA, ET LEURS PROCÉDÉS D'UTILISATION
Rhodium-Catalyzed Synthesis of Amides from Aldehydes and Azides by Chelation-Assisted CH Bond Activation
作者:Bing Zhou、Yaxi Yang、Jingjing Shi、Huijin Feng、Yuanchao Li
DOI:10.1002/chem.201301168
日期:2013.8.5
CH activation: A RhIII‐catalyzed direct aldehyde CH amidation has been achieved with sulfonyl, aryl, and alkyl azides as the amine sources, and release of N2 as the only byproduct (see scheme). More importantly, this catalytic reaction proceeds in the absence of external oxidants or additives, under mild conditions, at neutral pH under air. This reaction represents a new avenue for practical intermolecular
A simple and practical synthesis of ynones directly from readily available aldehydes was developed for the first time under mild reaction conditions via a Rh(III)- or Ir(III)-catalyzed formyl C-H bondactivation.
Synthesis of Cyclopentadienols by Rhodium-Catalyzed C–H Activation of 8-Formylquinolines and [2+2+1] Carbocyclization with Alkynes
作者:Xingwei Li、Xifa Yang、Zisong Qi
DOI:10.1021/acscatal.6b01936
日期:2016.10.7
An efficient Rh(III)-catalyzed redox-neutral [2+2+1] coupling between 8-formylquinolines and alkynes has been realized for the synthesis of cyclopentadienols with broad substrate scope and functional group tolerance. The reaction occurs via C (acyl)–H activation with double insertion of the alkyne in high atom-economy. Instead of simply undergoing a [2+2+1] cyclization, a subsequent formal intermolecular
Rhodium(III)-Catalyzed Intermolecular Direct Amidation of Aldehyde C–H Bonds with <i>N</i>-Chloroamines at Room Temperature
作者:Bing Zhou、Juanjuan Du、Yaxi Yang、Yuanchao Li
DOI:10.1021/ol400921r
日期:2013.6.21
A Rh(III)-catalyzed direct aldehyde C–Hamidation from aldehydes and N-chloroamines, prepared in situ from amines, has been developed via C–H bond activation under very mild reaction conditions. A variety of primary and secondary amines were used to afford the corresponding amides in moderate to excellent yields.
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