Multifunctional core-shell Pd@Cu on MoS2 as a visible light-harvesting photocatalyst for synthesis of disulfide by S S coupling
作者:Mohammad Yusuf、Sehwan Song、Sungkyun Park、Kang Hyun Park
DOI:10.1016/j.apcata.2021.118025
日期:2021.3
Pd@Cu/MoS2 nanostructures is utilized for synthesis of disulfides by SS Coupling. The Pd@Cu core-shell was obtained by one-pot hydrothermal synthesis, and a simple method was used to load it onto the MoS2. The as-prepared materials were characterized by scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy, UV–vis diffuse reflectance
可见光收集材料被认为是有前途的具有成本效益的有机合成多相催化剂。利用新型有效合成的多功能核-壳Pd @ Cu / MoS 2纳米结构,通过SS偶联合成二硫化物。通过一锅水热合成法获得了Pd @ Cu核壳,并用一种简单的方法将其加载到MoS 2上。所制备的材料通过扫描电子显微镜,透射电子显微镜,X射线粉末衍射,X射线光电子能谱,紫外可见漫反射光谱和光致发光光谱来表征。Pd @ Cu / MoS 2纳米结构显示出优异的光催化活性,可重复使用性以及对硫醇与二硫醚的氧化偶联的稳定性。Pd @ Cu / MoS 2出色的光催化活性将增强多功能核壳纳米材料作为光催化剂的广泛应用领域的兴趣。
Laccase-catalyzed in situ generation and regeneration of N-phenyltriazolinedione for the aerobic oxidative homo-coupling of thiols to disulfides
作者:Donya Khaledian、Amin Rostami、Seyed Amir Zarei
DOI:10.1016/j.catcom.2018.06.007
日期:2018.8
N-phenyltriazolinedione, a valuable oxidizingagent, from a catalytic amount of N-phenyl urazole in the presence of a laccase enzyme is presented. The application of a 4-phenyl urazole/Laccase/O2 as a new cooperative catalytic oxidationsystem is reported for a transition-metal-free and halogen free oxidative homo-coupling reaction of structurally diverse thiols to their correspondingdisulfides with good to excellent
有氧的第一份报告原位生成和再生Ñ -phenyltriazolinedione,一种有价值的氧化剂,从催化量ñ -苯基尿唑在漆酶的存在下被呈现。据报道,使用4-苯基脲唑/漆酶/ O 2作为新的协同催化氧化系统,可以使结构多样的硫醇与相应的二硫键发生无过渡金属和无卤素的氧化均偶联反应,并具有良好或优异的收率。在温和的反应条件下在磷酸盐缓冲液中溶解。
Vis/NIR light driven mild and clean synthesis of disulfides in the presence of Cu<sub>2</sub>(OH)PO<sub>4</sub> under aerobic conditions
作者:Sk. Sheriff Shah、S. Karthik、N. D. Pradeep Singh
DOI:10.1039/c5ra05138j
日期:——
A highly efficient one-pot strategy has been developed for the synthesis of disulfide in the presence of air under the irradiation of Vis/NIR light.
已开发出一种高效的一锅法合成二硫化物的策略,在可见光/近红外光照射下在空气存在下进行。
S N Ar nucleophilic substitution of 1,9-dihalodipyrrins by S- and N- nucleophiles. Synthesis of new dipyrrins bearing pendant substituents
react with a series of S- and N- nucleophiles (both alkyl- and aryl- ones). Reagents with mercapto group yield product of double nucleophilicsubstitution of 5-pheny-1,9-dichlorodipyrrin, i.e. the respective 1,9-bis(alkyl-of arylthio)dipyrrin. On the contrary, 5-(4-nitrophenyl)-1,9-dichlorodipyrrin causes disulfides formation from the S-aliphatic substrates, whereas nucleophilicsubstitution remains the
[EN] BIARYL DERIVATIVES AS GPR120 AGONISTS<br/>[FR] DÉRIVÉS DE BIARYLE EN TANT QU'AGONISTES DE GPR120
申请人:LG LIFE SCIENCES LTD
公开号:WO2014209034A1
公开(公告)日:2014-12-31
The present invention relates to biaryl derivatives of Formula 1, a method for preparing the same, a pharmaceutical composition comprising the same and use thereof. The biaryl derivatives of Formula 1 according to the present invention promote GLP-1 formation in the gastrointestinal tract and improve insulin resistance in the liver or in muscle due to anti-inflammatory action in macrophages, lipocytes, etc., and can accordingly be effectively used for preventing or treating diabetes, complications of diabetes, obesity, non-alcoholic fatty liver, steatohepatitis, osteoporosis or inflammation.