Sulphonic acid functionalized porphyrin anchored with a <i>meso</i>-substituted triazolium ionic liquid moiety: a heterogeneous photo-catalyst for metal/base free C–C cross-coupling and C–N/C–H activation using aryl chloride under visible light irradiation
is an efficient photocatalyst for the Heck, Sonogashira, Buchwald, Ullmann/Fittig coupling and C–H activation of phenols with different aryl chlorides in the absence of a base/noble metal, using 5 W LED (yellow) light under ambient conditions. The photocatalyst with low band gap (1.55 eV) comprising conjugation, favors couplingreaction of unactivated aryl chlorides, by easy excitation of electrons
我们报告了一种简单的合成磺酸官能化卟啉的方法,该方法与内消旋的三唑鎓离子液体部分(SAFPTILM)固定,可在可见光下使用芳基氯进行金属/碱自由的C-C交叉偶联和C-N / C-H活化光照射。酸强度已经基于哈米特指示剂进行了测量。SAFPTILM光催化剂包含18个π共轭电子体系,内消旋有生色团取代基位置可以在可见光的照射下的光催化过程中提供快速的电子传导通道。研究发现,使用5 W LED(黄色)光时,SAFPTILM是在没有碱金属/贵金属的情况下,用于Heck,Sonogashira,Buchwald,Ullmann / Fittig偶联和苯酚与不同的芳基氯化物的C–H活化的有效光催化剂。在环境条件下。具有低带隙(1.55 eV)的光催化剂具有共轭作用,通过易于激发电子并转移至基于共轭苯并咪唑鎓的苯二胺载体上,有利于未活化的芳基氯的偶联反应,从而延迟了光致电子-空穴对的重组。
[EN] HIV INHIBITING 1,2,4-TRIAZInONE DERIVATIVES<br/>[FR] DÉRIVÉS DE 1,2,4-TRIAZINONE INHIBITEURS DU VIH
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2006015985A1
公开(公告)日:2006-02-16
The present invention relates to HIV replication inhibitors of formula (I) a N-oxide, a pharmaceutically acceptable addition salt, a quaternary amine or a stereochemically isomeric form thereof, wherein ring A and ring B represent phenyl, pyridyl, pyridazinyl, pyrimidinyl or pyrazinyl; n and m are 1 to 4; R1 represents hydrogen; aryl; formyl; C1-6alkylcarbonyl; C1-6alkyloxycarbonyl; optionally substituted C1-6alkyl; C1-6alkyloxy C1-6alkylcarbonyl substituted with C1-6alkyloxycarbonyl; their use as a medicine, their use for the manufacture of a medicament for the treatment or the prevention of HIV infection; their processes for preparation and pharmaceutical compositions comprising them.
In Situ Generation of Palladium Nanoparticles: Reusable, Ligand-Free Heck Reaction in PEG-400 Assisted by Focused Microwave Irradiation
作者:Zhengyin Du、Lin Bai、Wanwei Zhou、Fen Wang、Jin-Xian Wang
DOI:10.1055/s-0030-1259310
日期:2011.2
A rapid and efficient Heck coupling reaction of aryl iodides with terminal olefins was conducted in PEG-400 at 120 ËC in the presence of potassium carbonate and palladium nanoparticles formed in situ from palladium chloride under focused microwave irradiation. High to excellent product yields were achieved. The reaction medium and catalyst could be easily recycled at least five times without significant loss in reactivity.
The present invention relates to the field of HIV-1 infections, and in particular provides novel compounds containing fluorine on the Central ring. The compounds according to this invention are very suitable for the prevention and/or treatment of HIV-1 infection and in particular show higher activity against NNRTI-resistant strains of HIV-1.
The coupling reaction of 3-aryl (or heteroaryl) acrylonitriles with several aryl and heteroaryl iodides (Heck reaction) under Jeffery’s conditions has been studied as a concept to synthesize, in a stereospecific manner, trisubstituted olefins.