INHIBITION OF P38 KINASE ACTIVITY USING SUBSTITUTED HETEROCYCLIC UREAS
申请人:Dumas Jacques
公开号:US20120046290A1
公开(公告)日:2012-02-23
This invention relates to the use of a group of aryl ureas in treating cytokine mediated diseases, other than cancer and proteolytic enzyme mediated diseases, other than cancer, and pharmaceutical compositions for use in such therapy.
Oxalohydrazide Ligands for Copper‐Catalyzed C−O Coupling Reactions with High Turnover Numbers
作者:Ritwika Ray、John F. Hartwig
DOI:10.1002/anie.202015654
日期:2021.4.6
long‐lived copper catalysts for couplings that form the C−O bonds in biaryl ethers. These Cu‐catalyzed coupling of phenols with aryl bromides occurred with turnovers up to 8000, a value which is nearly two orders of magnitude higher than those of prior couplings to form biaryl ethers and nearly an order of magnitude higher than those of any prior copper‐catalyzed coupling of aryl bromides and chlorides
Immobilized palladium nanoparticles on MNPs@A-<i>N</i>
-AEB as an efficient catalyst for C-O bond formation in water as a green Solvent
作者:Firouz Matloubi Moghaddam、Mohammad Eslami
DOI:10.1002/aoc.4463
日期:2018.9
presented as an efficient, and reusable magnetically heterogeneous catalyst for the C‐O coupling reaction, namely Ullmann condensation reactions in an aqueous medium. This heterogeneous catalyst shows superior reactivity for the C‐O arylation of different aryl halide (chloride, bromide, and iodide) with phenolderivatives to afford the desired products in good to excellent yields within short reaction
Copper-catalyzed C-C couplingreaction of aryl iodides with diethylmalonate in toluene at 90 °C gave arylated malonates using 5 mol% of CuI with hydrazone la as a ligand in good yields under an aerobic atmosphere. We also found Cul/hydrazone 1b in toluene to be an efficient catalytic system for C-O couplingreactions of aryl bromides with phenols to give aryl ethers in good yields at 110 °C under an
在 90°C 下,芳基碘化物与丙二酸二乙酯在甲苯中的铜催化 CC 偶联反应得到芳基化丙二酸酯,使用 5 mol% 的 CuI 和腙 1a 作为配体,在有氧气氛下以良好的收率。我们还发现甲苯中的 Cul/腙 1b 是一种有效的催化体系,用于芳基溴化物与苯酚的 CO 偶联反应,在 110 °C 有氧气氛下以良好的产率得到芳基醚。