Linked aryl aryloxypropanolamines as a new class of lipid catabolic agents
摘要:
The synthesis of a series of stilbene, biaryl, tolane, diaryl ether, sulfide, sulfoxide, and sulfone oxypropanolamines as potential antiobesity agents is described. These compounds were evaluated in a mouse lipid catabolism screen, and the more active members of the series, 4, 57, and 58, were further investigated in rats and dogs. 1-(2,6-Ditert-butyl-4-trans-styrylphenoxy)-3-isopropylamino-2-propanol (4) possessed considerable lipid catabolic activity in mice and caused a significant reduction in the body weight of rats after 5 weeks and of dogs after 6 weeks. Only hematological irregularities in a chronic toxicity study precluded further development of this compound as an alternative antiobesity treatment.
Microwave-Assisted Simple and Efficient Ligand Free Copper Nanoparticle Catalyzed Aryl-Sulfur Bond Formation
作者:Brindaban C. Ranu、Amit Saha、Ranjan Jana
DOI:10.1002/adsc.200700289
日期:2007.12.10
A new protocol for the coupling of aryl iodides with thiophenols and alkanethiols catalyzed by coppernanoparticles under ligand-free condition has been developed. A variety of functionalized aryl sulfides are prepared in excellent yields under microwave irradiation for 5–7 min. A plausible radical mechanism has been suggested.
Copper(II)-faciliated synthesis of substituted thioethers and 5-substituted 1H-tetrazoles: Experimental and theoretical studies
作者:Samaresh Layek、Bhumika Agrahari、Shuvankar Dey、Rakesh Ganguly、Devendra D. Pathak
DOI:10.1016/j.jorganchem.2019.06.008
日期:2019.9
thermo-gravimetric (TG) analysis and Cyclic Voltammetry. The molecular structures of both complexes have also been determined by single crystal X-ray crystallography, which confirmed the coordination of Schiffbase ligands through N, O donor atoms and distorted square planar geometry around the Cu(II) ion. Both complexes were found to be good homogeneous catalysts for the synthesis of a wide range of substituted
Iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature
作者:Hua Tian、Changjin Zhu、Haijun Yang、Hua Fu
DOI:10.1039/c4cc03600j
日期:——
A simple, efficient and environmentally friendly method for iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature has been developed, and the corresponding diaryl sulfides were prepared in good to excellent yields.
Odorless, Regioselective Synthesis of Diaryl Sulfides and α-Thioaryl Carbonyls from Sodium Arylsulfinates <i>via</i>
a Metal- Free Radical Strategy in Water
作者:Ya-mei Lin、Guo-ping Lu、Gui-xiang Wang、Wen-bin Yi
DOI:10.1002/adsc.201600846
日期:2016.12.22
Regioselective arylthiolations of aromatic amines, arenols and ketones via C–H bond functionalization have been achieved with I2 and PPh3 in an aqueous system, whereby arylsulfenyl radicals are in situ generated from odorless sodium arylsulfinates. The arylsulfenyl radicals can react with free anilines containing electron‐withdrawing groups and complex substrates (estrone and progesterone). Further
Site-Selective Synthesis of Aryl Sulfides <i>via</i> Oxidative Aromatization of Cyclohexanones with Thiophenols
作者:Fuhong Xiao、Minli Tang、Huawen Huang、Guo-Jun Deng
DOI:10.1021/acs.joc.1c02530
日期:2022.1.7
We have introduced a metal-free facile access for the thiolation/aromatization of cyclohexanones with thiophenols to the corresponding aryl sulfides. The dehydroaromatic reaction of non-aromatic cyclohexanones proceeded smoothly using oxygen as a green oxidant.