Pd-Catalyzed α-Arylation of α,α-Difluoroketones with Aryl Bromides and Chlorides. A Route to Difluoromethylarenes
作者:Shaozhong Ge、Wojciech Chaładaj、John F. Hartwig
DOI:10.1021/ja501117v
日期:2014.3.19
α-difluoroketones with aryl and heteroaryl bromides and chlorides catalyzed by an air- and moisture-stable palladacyclic complex containing P(t-Bu)Cy2 as ligand. The combination of this Pd-catalyzed arylation and base-induced cleavage of the acyl–aryl C–C bond within the α-aryl-α,α-difluoroketone constitutes a one-pot, two-step procedure to synthesize difluoromethylarenes from aryl halides. A broad range
Pd-Catalyzed α-Arylation of Trimethylsilyl Enolates of α,α-Difluoroacetamides
作者:Shaozhong Ge、Sophie I. Arlow、Michael G. Mormino、John F. Hartwig
DOI:10.1021/ja508590k
日期:2014.10.15
ilyl)acetamides with aryl and heteroaryl bromides catalyzed by an air- and moisture-stable palladacyclic complex containing P(t-Bu)2Cy as ligand. A broad range of electronically varied aryl and heteroaryl bromides underwent this transformation to afford α-aryl-α,α-difluoroacetamides in high yields. Due to the electrophilicity of the fluorinated amide, this palladium-catalyzed cross-coupling reaction
Palladium-Catalyzed Enantioselective α-Arylation of α-Fluoroketones
作者:Zhiwei Jiao、Jason J. Beiger、Yushu Jin、Shaozhong Ge、Jianrong Steve Zhou、John F. Hartwig
DOI:10.1021/jacs.6b09580
日期:2016.12.14
carbonyl compounds is a widely practiced method for C-C bondformation. Several enantioselective versions of this process have been reported, but intermolecular, enantioselective coupling reactions of aryl electrophiles with α-fluoro carbonyl compounds have yet to be disclosed. We report enantioselective coupling of aryl and heteroaryl bromides and triflates with α-fluoroindanones catalyzed by palladium
[EN] METAL-CATALYZED COUPLING OF ARYL AND VINYL HALIDES WITH ALPHA, ALPHA-DIFLUOROCARBONYL COMPOUNDS<br/>[FR] COUPLAGE CATALYSÉ MÉTALLIQUE D'HALOGÉNURES D'ARYLE ET DE VINYLE AVEC DES COMPOSÉS ALPHA, ALPHA-DIFLUOROCARBONYLE
申请人:UNIV CALIFORNIA
公开号:WO2014165861A1
公开(公告)日:2014-10-09
The coupling of aryl, heteroaryl, and vinyl halides with α,α-difluoroketones or silyl ethers or siylenol ethers of α,α-difluoroketones and α,α-difluoroamides and esters are described. Further derivatization of the coupling products (such as ketone cleavage and Baeyer-Villiger oxidation) is also described.
[EN] N-BENZODIOXOLYL, N-BENZODIOXANYL AND N-BENZODIOXEPINYL ARYLCARBONXAMIDE DERIVATIVES, AND PHARMACEUTICAL COMPOSITIONS COMPRISING THEM<br/>[FR] DERIVES DE N-BENZODIOXOLYL, N-BENZODIOXANYL ET N-BENZODIOXEPINYL ARYLCARBOXAMIDE ET COMPOSITIONS PHARMACEUTIQUES LES RENFERMANT
申请人:MERCK PATENT GMBH
公开号:WO2004037806A1
公开(公告)日:2004-05-06
The present invention relates to a compound of the formula (I) : in which T, A, R, B Xi, Yi and n are as defined in Claim 1, and to the pharmaceutically usable derivatives, solvates and stereoisomers thereof, comprising a mixture thereof in all proportions, which can be used in the treatment of dyslipidaemia, and to pharmaceutical compositions comprising them.