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We report the fabrication of a novel spinel-type Pd₀.₁Cu₀.₉Co₂O₄ nano-flake material designed for Mizoroki-Heck and Suzuki coupling-cum-transesterification reactions. The Pd₀.₁Cu₀.₉Co₂O₄ material was synthesized using a simple co-precipitation method, and its crystalline phase and morphology were characterized through powder XRD, UV-Vis, FESEM, and EDX studies. This material demonstrated excellent catalytic activity in Mizoroki-Heck and Suzuki cross-coupling reactions, performed in the presence of a mild base (K₂CO₃), ethanol as the solvent, and microwave irradiation under ligand-free conditions. Notably, the Heck coupling of acrylic esters proceeded concurrently with transesterification using various alcohols as solvents. The catalyst exhibited remarkable stability under reaction conditions and could be recycled and reused up to ten times while maintaining its catalytic integrity.
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http://dx.doi.org/10.3389/fchem.2024.1496234 | DOI Listing |
J Org Chem
September 2025
National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P. R. China.
We herein describe a novel decarboxylation/cyclization sequence involving a three-component reaction of dialkyl 2-(alkoxymethylene)malonate, amines, and terminal alkyne ester or internal alkyne ester catalyzed by CsCO under microwave conditions. These two types of highly chemo- and regioselective transformations were accomplished by different reaction channels to furnish a wide range of functionalized 8-hydroxyisoquinoline-1(2)-ones (21 examples) and 2-pyridones (18 examples) in good to excellent yields and might provide new opportunities for the discovery of N-heterocyclic drugs and other functional molecules.
View Article and Find Full Text PDFTurkiye Parazitol Derg
September 2025
Department of Medical Physics, Faculty of Paramedicine, Arak University of Medical Sciences, Arak, Iran.
Objective: Drug resistance in poses a significant challenge, prompting the need for alternative treatments. This research aimed to explore the combined treatment of chemical or phytomedicines and microwaves radiation.
Methods: The strain was cultivated on non-nutrient agar.
Org Lett
September 2025
Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India.
This study introduces microwave-assisted, Fe(III)-catalyzed ring-opening annulations of isoxazoles, enabling the rapid and selective synthesis of 1,4-diacyl pyrroles and substituted pyridines. By leveraging microwave irradiation and transition metal catalysis, this approach enhances the reaction efficiency, reduces reaction times, and promotes high regioselectivity under mild conditions. Under thermal conditions, the Ru(II) catalyst led to the synthesis of nicotinamide derivatives.
View Article and Find Full Text PDFCarbohydr Polym
November 2025
Department of Inorganic, Organic and Biochemistry, Faculty of Chemical Sciences and Technologies, University of Castilla-La Mancha, Ciudad Real, 13005, Spain. Electronic address:
This study investigates the extraction, optimization, and characterization of pectin from pistachio industry waste (PIW) using microwave-assisted subcritical water extraction (MASWE) without acid. Two different low-methoxyl pectins (LMP) were observed. The first pectin variant (MASWE100) was extracted at a pressure of 3 MPa, a temperature of 100 °C, and an irradiation time of 4 min.
View Article and Find Full Text PDFJ Mater Chem B
September 2025
Department of Orthopedics, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, 225000, China.
Implant-related infections (IRIs) pose a major challenge in orthopedic applications due to the persistence of biofilms, which are highly resistant to conventional antibiotics. This study introduces oxygen vacancy-engineered Zn-Fe spinel nanoparticles as microwave-responsive antibacterial agents. The oxygen vacancies in the spinel structure enhance reactive oxygen species (ROS) generation under microwave irradiation, providing a dual-mode antibacterial mechanism of thermal and oxidative stress.
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