A practical and efficient radical coupling of easily available arylthiodifluoroacetic acids and ethynylbenziodoxolone (EBX) reagents has been reported. Under transition metal-free conditions, aryl-substituted EBXs were converted to the corresponding ArSCF2-substituted alkynes in moderate to good yields, whereas TIPS-EBX underwent silver-catalyzed decarboxylative conditions to deliver the desired coupling
[EN] COMBINATIONS OF HEPATITIS C VIRUS INHIBITORS<br/>[FR] ASSOCIATIONS D'INHIBITEURS DU VIRUS DE L'HÉPATITE C
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2015005901A1
公开(公告)日:2015-01-15
The present disclosure is generally directed to antiviral compounds, and more specifically directed to combinations of compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such combinations, and methods for inhibiting the function of the NS5A protein.
The present disclosure is generally directed to antiviral compounds, and more specifically directed to combinations of compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such combinations, and methods for inhibiting the function of the NS5A protein.
Fluorodecarboxylation: Synthesis of aryl trifluoromethyl ethers (ArOCF3) and thioethers (ArSCF3)
作者:Sankarganesh Krishanmoorthy、Simon D. Schnell、Huong Dang、Fang Fu、G.K. Surya Prakash
DOI:10.1016/j.jfluchem.2017.07.017
日期:2017.11
Fluorodecarboxylation of aryloxydifluoroacetic acid (ArOCF2CO2H) and arylmercaptodifluoroacetic acid (ArSCF2CO2H) towards ArXCF3 (X = O, S) using silver (I) salts in the presence of Selectfluor in a biphasic system with trifluoroacetic acid additive is discussed.
在具有三氟乙酸添加剂的双相体系中,在Selectfluor的存在下,使用银(I)盐存在下,使用银(I)盐将芳氧基二氟乙酸(ArOCF 2 CO 2 H)和芳基巯基二氟乙酸(ArSCF 2 CO 2 H)朝ArXCF 3(X = O,S)进行氟羧化讨论。
Direct Regioselective [3 + 2] Cycloaddition Reactions of Masked Difluorodiazoethane with Electron-Deficient Alkynes and Alkenes: Synthesis of Difluoromethyl-Substituted Pyrazoles
作者:Jun-Liang Zeng、Zhen Chen、Fa-Guang Zhang、Jun-An Ma
DOI:10.1021/acs.orglett.8b01854
日期:2018.8.3
synthetic utility of this reagent is demonstrated by a direct regioselective [3 + 2] cycloaddition with electron-deficient alkynes and alkenes. This protocol enables facile construction of an array of difluoromethyl-substituted pyrazoles in good to high yields under mild reaction conditions.