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A novel, durable heterogeneous magnesium-supported catalyst, IRMOF-3@Di(2-pyridyl) ketone@Mg(II) (Di(2-pyridyl) ketone: Di-2pyk), was effectively synthesized using a convenient approach and fully characterized utilizing chemo-physical analysis techniques such as powder X-ray diffraction analysis, attenuated total reflection infrared spectroscopy, field emission scanning electron microscopy with energy-dispersive spectroscopy, transmission electron microscopy, CHN analysis, inductively coupled plasma optical emission spectroscopy, thermogravimetric analysis and Brunauer-Emmett-Teller measurements. This metal-organic framework-based nanocatalyst displayed excellent catalytic behaviour in chemoselective hydrogenation of five biomass-based carbonyl compounds of furfural, cinnamaldehyde, levulinic acid, vanillin and citral in addition to a variety of aliphatic, aromatic, and α,β-unsaturated aldehydes and ketones at room temperature in water in the presence of sodium borohydride as a mild and safe hydrogen source reagent. The leaching and reusability experiments of this catalyst exhibited stability and reactivity after four runs.
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http://dx.doi.org/10.1098/rsos.242257 | DOI Listing |
Mol Divers
September 2025
Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, 61413, Abha, Saudi Arabia.
The catalytic asymmetric Mannich reaction is a multicomponent reaction which affords β-amino carbonyl compounds by utilizing an aldehyde, a primary or secondary amine/ammonia, and a ketone. β-amino carbonyl scaffolds are crucial intermediates for the synthesis of naturally occurring bioactive compounds and their derivatives. The synthesized natural compounds exhibit a broad spectrum of biological activities including anti-fungal, anti-cancer, anti-bacterial, anti-HIV, anti-oxidant, and anti-inflammatory activities.
View Article and Find Full Text PDFPLoS One
September 2025
Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Animal Science and Technology, Foshan University, Foshan, China.
Double-Layer Steamed Milk Custard (DLSMC) is a famous traditional Chinese dessert. This study aimed to analyze the flavor and the changes in metabolites during different stages of DLSMC preparation, including raw buffalo milk, thermo-processing, first and second-layer milk skin formation. Electronic nose and electronic tongue were employed to preliminarily assess the overall flavor characteristics between these stages.
View Article and Find Full Text PDFBiochem Biophys Res Commun
September 2025
Departamento de Ciencias Químico-Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Ciudad Juárez, Mexico. Electronic address:
Chlorpromazine (CPZ) is a first-generation antipsychotic that has been widely used to treat an array of neurological conditions, including schizophrenia, bipolar disorder, and anxiety. Treatment of these chronic conditions with CPZ has been linked to elevated levels of reactive oxygen species (ROS), and accumulating evidence supports a link between ROS and chronic and degenerative pathologies, including cardiovascular diseases. Therefore, the aim of this study was to observe the presence of oxidative stress in porcine aortic endothelial cells (PAE) exposed to different concentrations of CPZ in vitro.
View Article and Find Full Text PDFChem Rec
September 2025
Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India.
The Friedländer quinoline synthesis represents a fundamental method for the construction of quinoline derivatives, a versatile class of heterocyclic compounds widely prevalent in pharmaceuticals and materials science. This synthesis traditionally involves the condensation of 2-aminoaryl ketones with carbonyl compounds, typically ketones or aldehydes, in the presence of an acid or base under reflux conditions. However, recent advancements have highlighted indirect approaches (starting from 2-aminobenzyl alcohol) to achieve the same quinoline framework, offering distinct advantages in selectivity, substrate scope, and functional group tolerance.
View Article and Find Full Text PDFFood Chem
August 2025
Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, PR China. Electronic address:
Morel (Morchella spp.) is highly valued and increasingly widely cultivated in China. However, due to the limited analysis of its flavor components and origin, its full utilization is restricted.
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