Highly Active Palladium Catalyst for the Sonogashira Coupling Reaction of Unreactive Aryl Chlorides
作者:Dong-Hwan Lee、Young-Jun Kwon、Myung-Jong Jin
DOI:10.1002/adsc.201100747
日期:2011.11
communication reports on the β-diketiminatophosphane palladium-catalyzed copper-free Sonogashira coupling of arylchlorides with alkynes. A catalyst loading of 0.5 mol% is sufficient to achieve high performance under relatively mild reaction conditions. Furthermore, dialkynylbenzenes are efficiently prepared by one-pot double Sonogashira couplings of aryl dichlorides.
[EN] NOVEL COMPOUNDS AND COMPOSITIONS FOR THE INHIBITION OF NAMPT<br/>[FR] NOUVEAUX COMPOSÉS ET COMPOSITIONS UTILISÉS DANS L'INHIBITION DE NAMPT
申请人:FORMA TM LLC
公开号:WO2012150952A1
公开(公告)日:2012-11-08
The present invention relates to compounds and composition for inhibition of NAMPT, their synthesis, applications and antidotes. An illustrative compound of the invention is shown below.
Selectivity of aromatic chlorination reactions within a reversed-phase liquid chromatography column
作者:David A. Jaeger、Malgorzata Wegrzyn Clennan、Donald E. Leyden、R.S.Shreedhara Murthy
DOI:10.1016/s0040-4039(00)96630-9
日期:1987.1
Substrate selectivity was obtained in the chlorination of a series of -alkyl phenyl ethers by chlorine water on a reversed-phase high performance liquidchromatographycolumn at 25°C.
在反相高效液相色谱柱上,在25°C下用氯水氯化一系列-烷基苯基醚进行氯化反应时,可获得底物选择性。
METHODS OF MAKING COMPOUNDS HAVING A BETA-ADRENERGIC INHIBITOR AND A LINKER AND METHODS OF MAKING COMPOUNDS HAVING A BETA-ADRENERGIC INHIBITOR, A LINKER AND A PHOSPHODIESTERASE INHIBITOR
申请人:Chen Gang
公开号:US20080262226A1
公开(公告)日:2008-10-23
A method is provided for making compounds comprising a beta-adrenergic inhibiting moiety and a linking moiety, the method comprising: a) reacting a compound of formula (A): (R
1
—(CH—O—CH
2
)) with at least one of NH
3
, NH
4
, NH
4
ClNH
3
and R
12′
NH
2
thereby forming a compound of formula (B): (R
1
—CH(OH)—CH
2
—NHR
12′
); and b) reacting a compound of formula (B) with a compound of formula (C): (R
3
═O), thereby forming a compound of formula (D): (R
1
—COH—CH
2
—N(R
3
)(R
12′
)), wherein R
1
comprises the beta-adrenergic inhibiting moiety or comprises the beta-adrenergic inhibiting moiety when bonded to —COH—CH
2
—N(R
12′
)— of formula (D); R
3
comprises the linking moiety and is bonded to the =0 of formula (C) via a carbon atom; and R
12′
is selected from hydrogen and a protecting group.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.