Results 81 to 90 of about 53,724 (334)

Atomic Scale Engineering of Multivalence‐State Palladium Photocatalyst for Transfer Hydrogenation with Water as a Proton Source

Advanced Materials, EarlyView.
Photocatalytic transfer hydrogenation is achieved over a multivalence‐state palladium photocatalyst, in which protons generated from photocatalytic water splitting are added to unsaturated double bonds. The operando light‐induced Electron Paramagnetic Resonance (EPR) spectroscopy confirms the synergistic action between Pd single atoms and nanoparticles,
En Zhao, Wenjing Kong, Giorgio Zoppellaro, Yue Yang, Bing Nan, Lina Li, Wengjun Zhang, Zhaohui Chen, Aristides Bakandritsos, Zhu‐Jun Wang, Matthias Beller, Radek Zbořil, Zupeng Chen   +12 more
wiley   +1 more source

Simple chalcones and bis-chalcones ethers as possible pleiotropic agents [PDF]

Journal of Enzyme Inhibition and Medicinal Chemistry, 2015
The synthesis, the antioxidative properties and the lipoxygenase (LOX) and acetylcholinesterase (AChE) inhibition of a number of 4-hydroxy-chalcones diversely substituted as well as of a series of bis-chalcones ether derivatives are reported. The chalcones derivatives were readily produced using a Claisen-Schmidt condensation in a ultra sound bath in ...
Dimitra Hadjipavlou-Litina, Caterina Koukoulitsa, Efstathia Voulgari, Constantinos Avgoustakis, Thalia Liargkova   +4 more
openaire   +2 more sources

Synthesis and Characterization of Novel Heterocyclic Chalcones from 1-Phenyl-1H-pyrazol-3-ol

Molecules, 2022
An efficient synthetic route to construct diverse pyrazole-based chalcones from 1-phenyl-1H-pyrazol-3-ols bearing a formyl or acetyl group on the C4 position of pyrazole ring, employing a base-catalysed Claisen–Schmidt condensation reaction, is described.
Arminas Urbonavičius, Graziana Fortunato, Emilija Ambrazaitytė, Elena Plytninkienė, Aurimas Bieliauskas, Vaida Milišiūnaitė, Renzo Luisi, Eglė Arbačiauskienė, Sonata Krikštolaitytė, Algirdas Šačkus   +9 more
doaj   +1 more source

Exploring Gelatin‐A and Mouse Proline‐Rich Protein 5 as Probes for Wine Polyphenol Analysis by Quartz Crystal Microbalance with Dissipation Monitoring

Advanced Sensor Research, EarlyView.
This study presents a novel strategy for the detection of polyphenols in wine. By combining Quartz Crystal Microbalance with Dissipation Monitoring and original functionalization strategies, Gelatin A from porcine skin and Mouse Proline‐Rich Protein 5, polyphenols are successfully detected directly in wine without any prior sample preparation ...
Giorgia Tori, Mariacristina Gagliardi, Francesco Lunardelli, Chiara Sanmartin, Isabella Taglieri, Gianmarco Alfieri, Margherita Modesti, Domenica Convertino, Andrea Bellincontro, Fabio Mencarelli, Marco Cecchini   +10 more
wiley   +1 more source

Antiviral and antioxidant activity of a hydroalcoholic extract from Humulus lupulus L. [PDF]

, 2018
A hydroalcoholic extract from female inflorescences of Humulus lupulus L. (HOP extract) was evaluated for its anti-influenza activity. The ability of the extract to interfere with different phases of viral replication was assessed, as well as its effect ...
Carissimi, Stefania, Celestino, Ignacio, Checconi, Paola, DE ANGELIS, Marta, DI GIACOMO, Silvia, DI SOTTO, Antonella, Limongi, Dolores, Locatelli, Marcello, Martinoli, Lucia, Nencioni, Lucia, Palamara, ANNA TERESA, Rossi, Valeria, Toniolo, Chiara   +12 more
core   +1 more source

Recent Advancements in Lung Cancer Metastasis Prevention Based on Nanostrategies

Advanced Science, EarlyView.
Metastasis is the leading cause of death in patients with lung cancer. Nanomedicine can be used to prepare efficient drug delivery systems owing to their advantages and plays an important role in the synergistic antimetastasis of lung cancer. This comprehensive review summarizes the emerging nanostrategies against lung cancer metastasis based on the ...
Fan Xu, Yao Liu, Zujun Que, Bin Luo, Yun Yang, Yan Li, Zhanxia Zhang, Jianhui Tian   +7 more
wiley   +1 more source

Synthetic and Mechanistic Studies on the Solvent-Dependent Copper-Catalyzed Formation of Indolizines and Chalcones [PDF]

, 2015
Copper nanoparticles supported on activated carbon have been found to catalyze the multicomponent synthesis of indolizines from pyridine-2-carbaldehyde derivatives, secondary amines, and terminal alkynes in dichloromethane; in the absence of solvent ...
Albaladejo Maricó, María José, Alonso, Francisco, González Soria, María José   +2 more
core   +2 more sources

Integrated Green Biorefinery for the Production of Anthocyanins, Fermentable Sugars, and High Pure Lignin from Miscanthus × giganteus

Advanced Energy and Sustainability Research, EarlyView.
Integrated production of pigments, fermentation sugars, and pure lignin has been investigated for the creation of profitable biorefinery developments. Choline chloride‐based natural deep eutectic solvents possess unique solvent capabilities to interact with plant cell wall components to disintegrate lignin‐carbohydrate complex.
Tirath Raj, Vijay Singh
wiley   +1 more source

Synthesis and Biological Evaluation of Some New Chalcones Containing 2,5-Dimethylfuran Moiety

E-Journal of Chemistry, 2011
A series of new chalcones (3a-g) were prepared by Claisen-Schmidt condensation of 3-acetyl-2,5-dimethylfuran with various substituted aromatic aldehydes in presence of aqueous solution of potassium hydroxide and ethanol at room temperature.
S. Sridhar, S. C. Dinda, Y. Rajendra Prasad   +2 more
doaj   +1 more source

In vitro anti-malarial efficacy of chalcones: cytotoxicity profile, mechanism of action and their effect on erythrocytes

Malaria Journal, 2019
Malaria extensively leads to mortality and morbidity in endemic regions, and the emergence of drug resistant parasites is alarming. Plant derived synthetic pharmaceutical compounds are found to be a foremost research to obtain diverse range of potent ...
S. Sinha, D. Batovska, B. Medhi, B. Radotra, A. Bhalla, N. Markova, R. Sehgal   +6 more
semanticscholar   +1 more source