This paper presents a novel solvent free method of synthesis of trans-chalcones. The method was based on ultrasound irradiation of the reagents (aryl methyl ketones and aryl aldehydes) in presence of commercial acid-montmorillonites as catalysts. The trans-chalcones were synthesized in high yields (85-95%) and excellent selectivity in a short reaction time.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ultsonch.2009.06.008 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Novel technique to produce porous thermochromic VO nanoparticle films using gas aggregation source.
Sci Rep
January 2025
Department of Macromolecular Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00, Prague 8, Czech Republic.
Vanadium dioxide (VO) is a phase transition material that undergoes semiconductor-to-metal transition at the temperature of about 68 °C. This extraordinary feature triggered intensive research focused on the controlled synthesis of VO. In this study, we introduce and investigate an original linker- and solvent-free strategy enabling the production of highly porous VO nanoparticle-based films.
View Article and Find Full Text PDFImmobilization of Glycosyltransferase into a Hydrophilic Metal-organic Framework for Efficient Biosynthesis of Chondroitin Sulfate.
J Biotechnol
January 2025
Analysis and Testing Center, Nanjing Normal University, Nanjing, 210023, China. Electronic address:
Chondroitin sulfate (CS) is a structurally complex anionic polysaccharide widely used in medical, cosmetic and food applications. Enzymatic catalysis is an important strategy for synthesizing CS with uniform chain lengths and well-defined structures. However, the industrial application of glycosyltransferases is hindered by limitations such as low expression yields, poor stability, and challenges in reuse.
View Article and Find Full Text PDFIon Networks in Water-based Li-ion Battery Electrolytes.
Acc Chem Res
January 2025
Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Korea.
ConspectusWater-in-salt electrolytes (WiSEs) are promising electrolytes for next-generation lithium-ion batteries (LIBs), offering critical advantages like nonflammability and improved safety. These electrolytes have extremely high salt concentrations and exhibit unique solvation structures and transport mechanisms dominated by the formation of ion networks and aggregates. These ion networks are central to the performance of WiSEs, govern the transport properties and stability of the electrolyte, deviating from conventional dilute aqueous or organic electrolytes.
View Article and Find Full Text PDFDevelopment of a Multifunctional Chitosan-Based Composite Film from Crab Shell () and Algae () with Enhanced Antioxidant and Antimicrobial Properties for Active Food Packaging.
Foods
December 2024
Department of Chemical Engineering, Faculty of Chemistry, Universidad de Sevilla, 41012 Seville, Spain.
Eco-friendly, bioactive and edible films from renewable resources are increasingly regarded as viable replacements for petroleum-based packaging. This study investigates the application of macroalgae powder (ULP) as an active additive in crab () chitosan-based films for natural food packaging. Films with ULP concentrations of 0.
View Article and Find Full Text PDFA Co-Blended and Compounded Photosensitive Resin with Improved Mechanical Properties and Thermal Stability for Nail Polish Application.
Polymers (Basel)
December 2024
Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
UV-curable bio-based resins are widely used in the UV curing field. However, the current UV-curable bio-based resins for the application of nail polish still have the problems of too high viscosity and insufficiently excellent mechanical properties. In this study, a soybean oil-based acrylate photosensitive resin is synthesized by using epoxidized soybean oil as a raw material and reacting it with acrylic acid.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!