Divergent Synthesis of Tunable Cyclopentadienyl Ligands and Their Application in Rh-Catalyzed Enantioselective Synthesis of Isoindolinone
作者:Wen-Jun Cui、Zhi-Jie Wu、Qing Gu、Shu-Li You
DOI:10.1021/jacs.0c02813
日期:2020.4.22
unprecedented enantioselective [4+1] annulation reaction of benzamides and alkenes was achieved with a broad substrate scope under mild reaction conditions, providing a variety of isoindolinones with excellent regio- and enantioselectivity (up to 94% yield, 97:3 er). Preliminary mechanistic studies suggest that the reaction involves an oxidative Heck reaction and an intramolecular enantioselective alkene
A cobalt(III)-catalyzed C-8 selective C–H amidation of quinoline N-oxide using dioxazolone as an amidating reagentundermildconditions is disclosed. The reaction proceeds efficiently with excellent functional group compatibility. The utility of the current method is demonstrated by gram scale synthesis of C-8 amide quinoline N-oxide and by converting this amidated product into functionalized quinolines
Rhodium-Catalyzed CH Alkynylation of Arenes at Room Temperature
作者:Chao Feng、Teck-Peng Loh
DOI:10.1002/anie.201309198
日期:2014.3.3
The rhodium(III)‐catalyzed ortho CH alkynylation of non‐electronically activated arenes is disclosed. This process features a straightforward and highly effective protocol for the synthesis of functionalized alkynes and represents the first example of merging a hypervalent iodine reagent with rhodium(III) catalysis. Notably, this reaction proceeds at room temperature, tolerates a variety of functional
Palladium-Catalyzed Cascade Decarboxylative Amination/6-<i>endo-dig</i> Benzannulation of <i>o</i>-Alkynylarylketones with <i>N</i>-Hydroxyamides To Access Diverse 1-Naphthylamine Derivatives
An efficient and practical one-pot strategy to produce highly substituted 1-naphthylamines via sequential palladium-catalyzed decarboxylative amination/intramolecular 6-endo-dig benzannulation reactions has been described. In this reaction, a broad range of electron-rich, electron-neutral, and electron-deficient o-alkynylarylketones react well with N-hydroxyl aryl/alkylamides to give a diversity of
[EN] HYDROXAMIC ACID DERIVATIVES AS GRAM-NEGATIVE ANTIBACTERIAL AGENTS<br/>[FR] DÉRIVÉS DE L'ACIDE HYDROXAMIQUE EN TANT QU'AGENTS CONTRE DES BACTÉRIES À GRAM NÉGATIF
申请人:ASTRAZENECA AB
公开号:WO2010100475A1
公开(公告)日:2010-09-10
The invention relates to chemical compounds of formula (IB): or a salt thereof. In some embodiments, the invention relates to inhibitors of UDP-3-0 — (R-S-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC). In still further embodiments, the invention relates to pharmaceutical compositions comprising compounds disclosed herein and their use in the prevention and/or treatment of Gram- negative bacterial infections.