Results 31 to 40 of about 3,603 (167)

The use of monosaccharides in metal-catalyzed coupling reactions [PDF]

, 2016
The addition of monosaccharides to metal-catalyzed coupling reactions can be beneficial in terms of decreasing the time required, chemical waste products and overall cost of the process. Monosaccharides are used in a number of different ways, including: (
Camp, Jason, Kyne, Sara
core   +1 more source

Synthesis, characterisation of polymer-​supported palladium-​2-​methylimidazole complex catalyst for the hydrogenation of aromatic nitro compounds [PDF]

, 2011
A polymer-​supported palladium-​2-​methylimidazole complex was synthesized and characterized by various physicochem. methods. The complex was successfully used as a catalyst for the hydrogenation of nitrobenzene and its derivs. under ambient conditions.
Alexander Stanislaus, ., Gayathri Virupaiah, ., Kashinath Rangu Patil, ., Shivakumaraiaha, ., Udayakumar Velua, ., Viswanathan Balasubramanian, .   +5 more
core   +1 more source

A Competitive Substitution of the Difluoromethoxy Group in Aminodehalogenation Reactions of Aromatic Nitro Compounds

Журнал органічної та фармацевтичної хімії
The interaction of substituted nitrobenzenes containing activated halogen atoms (fluorine or chlorine) and the difluoromethoxy group with an aqueous solution of ammonia at high pressure and temperature of 80 - 160 °C was studied.
Kirill I. Petko, Andrey A. Filatov, Oleksandr O. Yurchenko, Oleksandr V. Volokitin   +3 more
doaj   +1 more source

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

Advanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang, Junjie Cui, Zhenjie Yao, Boyuan Zhu, Nithinraj Panangattu Dharmarajan, Ajayan Vinu, Junwu Zhu   +6 more
wiley   +1 more source

Asymmetric Active Center Triggers Side‐On Photo‐Fenton‐Like Reaction Through Polar Charge Transfer and Self‐Adapting Sulfur Vacancies

Advanced Science, EarlyView.
The Cu‐Zn3In2S6 photocatalyst (Cu‐ZISV) with asymmetric Cu‐SV‐Zn sites was designed and synthesized to boost peroxymonosulfate (PMS) activation kinetics. The side‐on photo‐Fenton‐like reaction by the asymmetric Cu‐SV‐Zn site accelerated PMS activation and pollutant degradation, and the first‐order kinetic constant of Cu‐ZISV increased by 4.87 times ...
Jiaqi Hu, Xiaoyuan Zhang, Yufei Gao, Jianyi Liu, Xu He, Yu Liu, Jinfeng Lu, Jun Ma   +7 more
wiley   +1 more source

A comparative analysis of the UV/Vis absorption spectra of nitrobenzaldehydes. [PDF]

, 2011
In a joint experimental and theoretical study, the UV/Vis absorption spectra of the three isomers (ortho, meta, para) of nitrobenzaldehyde (NBA) were analyzed. Absorption spectra are reported for NBA vapors, cyclohexane and acetonitrile solutions.
Ahlrichs, Aw, Becke, Becke, Bickelhaupt, Christiansen, Coppens, Coppens, Corral, Fernández, Finley, Fonseca Guerra, Galloway, Heinz, Inés Corral, Karlström, King, Konopacka, Kovács, Laimgruber, Laimgruber, Lee, Leticia González, Leyva, Leyva, Malmqvist, Morokuma, Pelliccioli, Perdew, Peter Gilch, Pinchas, Roos, Schmierer, Sengwa, Snijders, te Velde, Thomas Schmierer, Verónica Leyva, Widmark, Ziegler   +39 more
core   +1 more source

Surface‐Bound Superoxide Radical‐Mediated Photo‐Fenton Mineralization of Ciprofloxacin on Fe‐Sillenite Nanosheets

Advanced Science, EarlyView.
This study systematically compares the degradation efficiency of CIP in a H2O2‐alone system and a novel Bi12FeO20‐H2O2 photo‐Fenton system. It reveals for the first time the presence of a quinone‐imine intermediate in the H2O2‐alone system, which exhibits toxicity comparable to CIP.
Wenting Qiu, Ji Liu, Hengjun Shang, Yaning Zhang, Shuai Dou, Jing Xu, Ying Zhang, Yang Lou, Yongfa Zhu, Chengsi Pan   +9 more
wiley   +1 more source

Investigation of Vibrational Signatures Of Nitrobenzenes Enhanced By Argyrophilic Interactions [PDF]

, 2018
This investigation studies the interactions between various nitroaromatic high energy density materials (HEDMs) and a pair of silver atoms (Ag2). Additionally, we examine the changes in frequency, infrared (IR) intensities, and Raman activities induced ...
Reed, Hailey
core   +1 more source

Aminodi(hetero)arylamines in the thieno[3,2-b]pyridine series: synthesis, effects in human tumor cells growth, cell cycle analysis, apoptosis and evaluation of toxicity using non-tumor cells [PDF]

, 2012
Three aminodi(hetero)arylamines were prepared via a palladium-catalyzed C-N Buchwald-Hartwig coupling of methyl 3-aminothieno[3,2-b]pyridine-2-carboxylate with different bromonitrobenzenes, followed by reduction of the nitro groups of the coupling ...
Abreu, Bray, Dai, Daniela Peixoto, Dunn, Eugénia Pinto, Isabel C. F. R. Ferreira, Luís A. Vale-Silva, M. Helena Vasconcelos, M. Inês Alvelos, Maria-João R. P. Queiroz, Munchhof, Queiroz, Queiroz, Queiroz, Raquel T. Lima, Ricardo C. Calhelha, Rui M. V. Abreu, Yin, Zheng   +19 more
core   +3 more sources