An effective and inexpensive strategy for the Co(C9H9NO2)3catalyzed Sonogashira–Hagihara cross‐coupling reaction of arylbromides containing electron‐rich and electron‐poor substituents with terminal alkynes was demonstrated. The reaction proceeded smoothly in the presence of ethylene glycol as additive and K2CO3 as base in DMF under visible light illumination, and 23 alkyne products were afforded
证明了一种有效且廉价的Co(C 9 H 9 NO 2)3催化Sonogashira–Hagihara交叉偶联反应的方法,该反应使含有富电子和贫电子取代基的芳基溴化物与末端炔烃反应。在乙二醇作为添加剂和K 2 CO 3的存在下,反应平稳进行在可见光照射下作为DMF的碱,提供了23种炔烃产品,收率中等至优异,其中包括4种新的二芳基乙炔。与高成本的钯催化剂相比,钴是一种廉价的催化剂,具有大量技术生产,并且无钯/无铜催化体系不仅提供了反应条件温和的高效工艺,而且还提高了底物基团的耐受性。
1,1'-(1,2-Ethynediyl)Bis-Benzene Derivatives As Ptp 1-B Inhibitors
申请人:Swinnen Dominique
公开号:US20090029903A1
公开(公告)日:2009-01-29
The present invention is related to carboxylic acids of Formula (I) and use thereof for the treatment and/or prevention of obesity and/or metabolic disorders mediated by insulin resistance or hyperglycemia, comprising diabetes type I and/or II, inadequate glucose tolerance, insulin resistance, hyperlipidemia, hypertriglyceridemia, hypercholesterolemia, polycystic ovary syndrome (PCOS). In particular, the present invention is related to the use of carboxylic acids of Formula (I) to modulate, notably to inhibit the activity of PTPs.
Method For Preparing Para-Phenyl Alkynyl Benzaldehydes
申请人:Swinnen Dominique
公开号:US20080108849A1
公开(公告)日:2008-05-08
The present invention is related to a new synthesis for preparing para-phenyl alkynyl benzaldehyde of general formula (I). The compounds of formula (1) are useful building blocks, in particular in the synthesis of electrically conducting polymers. R is selected from the group consisting of C
1
-C
12
-alkyl, C
1
-C
12
-alkyl aryl, C
1
-C
12
-alkyl heteroaryl, C
2
-C
12
-alkenyl, C
2
C
12
-alkenyl aryl, C
2
-C
12
-alkenyl heteroaryl, C
2
-C
12
-alkynyl, C
2
-C
12
-alkynyl aryl, C
2
-C
12
-alkynyl heteroaryl, C
3
-C
8
-cycloalkylC
1
-C
12
--alkyl-C
3
-C
8
-cycloalkyl, C
1
-C
12
-alkoxy, aryl, heteroaryl, halides.
1,1′-(1,2-ethynediyl)bis-benzene derivatives as PTP 1-B inhibitors
申请人:Merck Serono SA
公开号:US07947851B2
公开(公告)日:2011-05-24
The present invention is related to carboxylic acids of Formula (I) and use thereof for the treatment and/or prevention of obesity and/or metabolic disorders mediated by insulin resistance or hyperglycemia, comprising diabetes type I and/or II, inadequate glucose tolerance, insulin resistance, hyperlipidemia, hypertriglyceridemia, hypercholesterolemia, polycystic ovary syndrome (PCOS). In particular, the present invention is related to the use of carboxylic acids of Formula (I) to modulate, notably to inhibit the activity of PTPs.
Method for preparing para-phenyl alkynyl benzaldehydes
申请人:Laboratoires Serono SA
公开号:US07479575B2
公开(公告)日:2009-01-20
The present invention is related to a new synthesis for preparing para-phenyl alkynyl benzaldehyde of general formula (I). The compounds of formula (I) are useful building blocks, in particular in the synthesis of electrically conducting polymers. R is selected from the group consisting of C1-C12-alkyl, C1-C12-alkyl aryl, C1-C12-alkyl heteroaryl, C2-C12-alkenyl, C2C12-alkenyl aryl, C2-C12-alkenyl heteroaryl, C2-C12-alkynyl, C2-C12-alkynyl aryl, C2-C12-alkynyl heteroaryl, C3-C8-cycloalkylC1-C12-alkyl-C3-C8-cycloalkyl, C1-C12-alkoxy, aryl, heteroaryl, halides.