[EN] ANTIVIRAL PYRAZOLOPYRIDINONE COMPOUNDS<br/>[FR] COMPOSÉS ANTIVIRAUX DE PYRAZOLOPYRIDINONE
申请人:NOVARTIS AG
公开号:WO2021061898A1
公开(公告)日:2021-04-01
The invention provides compounds of Formula (I) as described herein, along with pharmaceutically acceptable salts, pharmaceutical compositions containing such compounds, and methods to use these compounds, salts and compositions for treating viral infections, particularly infections caused by herpesviruses.
[EN] PYRIDINE AND PYRIMIDINE CARBOXYLATE HERBICIDES AND METHODS OF USE THEREOF<br/>[FR] HERBICIDES CARBOXYLATES DE PYRIDINE ET DE PYRIMIDINE ET LEURS PROCÉDÉS D'UTILISATION
申请人:DOW AGROSCIENCES LLC
公开号:WO2019084353A1
公开(公告)日:2019-05-02
Provided herein are pyridine and pyrimidine carboxylates and their derivatives, and compositions and methods of use thereof as herbicides.
本文提供吡啶和嘧啶羧酸盐及其衍生物,以及它们作为除草剂的组合物和使用方法。
Difluoromethylation of N-arylsulfonyl hydrazones with difluorocarbene leading to difluoromethyl aryl sulfones
Difluoromethylation of N-arylsulfonyl hydrazones with difluorocarbene generated fromdifluoromethylene phosphobetaine (Ph3P+CF2CO2-) to give various difluoromethyl aryl sulfones is described.
Cobalt-Catalyzed Selective Unsymmetrical Dioxidation of <i>gem</i>-Difluoroalkenes
作者:Douglas L. Orsi、Justin T. Douglas、Jacob P. Sorrentino、Ryan A. Altman
DOI:10.1021/acs.joc.0c00415
日期:2020.8.21
proceed through reactive intermediates prone to eliminate a fluorine atom and generate monofluorinated products. Taking advantage of the distinct reactivity of gem-difluoroalkenes, we present a cobalt-catalyzed regioselective unsymmetrical dioxygenation of gem-difluoroalkenes using phenols and molecular oxygen, which retains both fluorine atoms and provides β-phenoxy-β,β-difluorobenzyl alcohols. Mechanistic
Base Catalysis Enables Access to α,α-Difluoroalkylthioethers
作者:Douglas L. Orsi、Brandon J. Easley、Ashley M. Lick、Ryan A. Altman
DOI:10.1021/acs.orglett.7b00386
日期:2017.4.7
A nucleophilicaddition reaction of aryl thiols to readily available β,β-difluorostyrenes provides α,α-difluoroalkylthioethers. The reaction proceeds through an unstable anionic intermediate, prone to eliminate fluoride and generate α-fluorovinylthioethers. However, the use of base catalysis overcomes the facile β-fluoride elimination, generating α,α-difluoroalkylthioethers in excellent yields and