arylation of allylic and benzylic alcohols with diaryliodoniumsalts is reported. The reaction yields alkyl aryl ethers under mild and metal-free conditions. Phenols are arylated to diaryl ethers in good to excellent yields. The reaction employs diaryliodoniumsalts and sodium hydroxide in water at low temperature, and excess amounts of the coupling partners are avoided.
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
公开号:US20160130205A1
公开(公告)日:2016-05-12
The present invention concerns a process for creating a Carbon-Carbon bond (C—C) or a Carbon-Heteroatom bond (C—HE) by reacting a compound carrying a leaving group with a nucleophilic compound carrying a carbon atom or a heteroatom (HE) that can substitute for the leaving group, creating a C—C or C—HE bond, wherein the reaction takes place in the presence of an effective quantity of a. a catalytic system comprising a ligand and at least a metal-based catalyst, such a metal catalyst being chosen among iron or copper compounds proviso that only a single metal is present.
Cross-Coupling Reactions of Aryl Halides with Amines, Phenols, and Thiols Catalyzed by an N,N′-Dioxide-Copper(I) Catalytic System
作者:Haitao Yang、Chao Xi、Zhiwei Miao、Ruyu Chen
DOI:10.1002/ejoc.201100274
日期:2011.6
reactions of various N, O, and S nucleophilic reagents with aryl halides have been successfully carried out under mild conditions by using a novel chiral N,N′-dioxide–copper(I) catalytic system as the catalyst. This versatile and efficient catalyst system has been demonstrated to facilitate the cross-coupling reactions of aryl halides with amines,phenols, and thiols to afford the corresponding desired
通过使用新型手性 N,N'-二氧化物-铜 (I) 催化体系作为催化剂,各种 N、O 和 S 亲核试剂与芳基卤化物的偶联反应已在温和条件下成功进行。这种多功能且高效的催化剂体系已被证明可促进芳基卤化物与胺、酚和硫醇的交叉偶联反应,从而以良好至极好的收率提供相应的所需产物。
Efficient Iron/Copper-Cocatalyzed O-Arylation of Phenols with Bromoarenes
作者:Songlin Zhang、Xiaoyan Liu
DOI:10.1055/s-0030-1259291
日期:2011.1
Low catalytic amount CuI and Fe(acac)3 were found to effectively promote the C-O cross-coupling reaction in the presence of K2CO3 as the base. A serious of diaryl ethers with different substitutents can be synthesized in good to excellent yields. This efficient and economic method is attractive for applications on an industrial scale.
[EN] INHIBITORS OF HEPATITIS C VIRUS<br/>[FR] INHIBITEURS DU VIRUS DE L'HÉPATITE C
申请人:PRESIDIO PHARMACEUTICALS INC
公开号:WO2012058125A1
公开(公告)日:2012-05-03
A class of compounds that inhibit Hepatitis C Virus (HCV) is disclosed, along with compositions containing the compound, and methods of using the composition for treating individuals infected with HCV.