Articles tagged with Organic Catalysts
A comprehensive review article highlights emerging strategies that enable environmentally benign coupling reactions, reducing reliance on rare metals and lowering energy consumption. The hypervalent iodine approach facilitates selective bond formation with high functional group tolerance and broad substrate scope.
A new microwave-assisted synthesis route has improved the performance of a coordination polymer photocatalyst, achieving a record-breaking value for CO2-to-formate conversion with a nearly ten-fold increase in apparent quantum yield. The improvements are attributed to well-crystallized material and surface area increases.
Researchers at Texas A&M University have developed a method to break down condensation polymers in plastics using solvents and liquid organic hydrogen carriers, producing aromatic compounds that can be used as fuels. This breakthrough has potential implications for the sustainability of the chemical industry and reducing global warming.
Hokkaido University researchers have developed a novel method to activate alkanes, making it easier to convert these building blocks into valuable compounds. The new technique utilizes confined chiral Brønsted acids, improving efficiency and selectivity in producing desired products.
A team of researchers from Okayama University developed a novel phenothiazine-based organic photoredox catalyst with enhanced stability and recyclability. The new catalyst, PTHS, features a spiral structure that provides improved stability and can be recycled multiple times without losing catalytic activity.
A metal-free organic framework catalyst has been developed for the electrocatalytic production of ethylene from carbon dioxide. The catalyst, based on a nitrogen-containing covalent organic framework (COF), demonstrated high selectivity and performance for the production of ethylene.
A team of researchers from Osaka University used machine learning to identify a highly effective boron-based catalyst for chemical transformations of amino acids and peptides. The new catalyst generates only water as a coproduct and promotes high-yield reactions with minimal environmental impact. By leveraging computational methods, th...
A team from the University of Virginia has identified an organic molecule that can effectively substitute expensive metal catalysts in fuel-cell technology, potentially leading to cheaper and more sustainable energy solutions. The discovery presents a significant step forward in the search for efficient fuel cells.
Researchers at Brookhaven National Laboratory and University of North Carolina Chapel Hill develop a room-temperature conversion reaction strategy to convert carbon dioxide into methanol. The process employs a recyclable organic reagent and sunlight, producing an easily storable and transportable liquid fuel.
A research team has synthesized a cutting-edge manganese-fluorine catalyst with exceptional oxidizing power, capable of extracting electrons from compounds. The catalyst facilitates efficient electron loss from toxic toluene derivatives, marking a significant breakthrough in catalytic research.
Chemists at NUS have developed a new iron-catalysed reaction to generate two alkyl-alkyl bonds in crowded environments, enabling the creation of valuable dialkylated compounds. The method harnesses an earth-abundant iron catalyst to combine alkenes with sp3-hybridised organohalides and organozinc reagents.
Scientists at the University of California, Davis, have successfully synthesized specific chiral molecules using rearrangements of simple hydrocarbons and complex organic catalysts. This breakthrough enables better harnessing of hydrocarbons for various purposes, including precursors to medicines and materials.
Researchers at UNC-Chapel Hill and Eastman have developed a new process for making anhydride chemical compounds using nickel as a catalyst, promising cost savings and sustainability. The new process offers a potential alternative to traditional methods that rely on expensive precious metal catalysts.
Researchers developed a new catalyst using bismuth selenide, a topological insulator, to synthesize organoureas at room temperature with almost 100% yield. The catalyst's unique properties allow for stable surface states and recyclability.
Scientists at the University of Groningen created an oscillating system using simple molecules to achieve periodic catalytic activity. The system enables enhanced chemical selectivity, favoring one reaction over others, and has potential applications in polymer synthesis and drug delivery.
Researchers at KAUST have developed a simple technique to create highly porous organic polymers, known as poly(aryl thioether), for applications in photocatalysis and optoelectronics. The material exhibits high surface area and tunable porosity, making it suitable for removing organic micropollutants and toxic mercury ions from water.
A new study employs artificial neural networks to predict and optimize ozonation catalyst performance based on data from 52 different catalysts. The approach integrates fluorescence spectroscopy to determine optimal impregnation concentrations and times, resulting in improved catalytic performance and removal of total organic carbon.
Researchers have developed a novel tin-based MOF that can selectively reduce CO2 to formate in the presence of visible light, achieving high selectivity and quantum yield. The material, called KGF-10, was found to be efficient, precious-metal-free, and single-component.
Researchers have developed a novel and cost-effective anode catalyst that can improve and stabilize power generation performance of MFCs treating vegetable oil industry wastewater. The study investigates modification of electrodes to increase bacterial adhesion and efficient electron transfer.
Researchers at Hokkaido University have developed a new method using cooperating catalysts to perform challenging dearomative carboxylation reactions. This process enables the production of α-amino acids, which are potentially useful for drug development, and offers greater freedom in designing and synthesizing molecules with carboxyl ...
Researchers developed a machine learning model using advanced 2D chemical descriptors to predict highly selective asymmetric catalysts without quantum chemical computations. The model demonstrated high accuracy in predicting catalyst structures and selectivity, outperforming existing methods.
Rice University scientists identified a new Diels-Alderase enzyme, CtdP, which catalyzes the Diels-Alder reaction with precise stereochemistry control. This discovery could lead to improved pharmaceutical synthesis and development of more effective drugs.
Researchers at Hokkaido University have developed a simple radical-based reaction to create unsymmetric variants of molecular compounds used in transition metal catalysts. This method opens up new avenues for designing catalysts and utilizes abundant ethylene feedstock.
A KAUST-led team creates selective anode catalysts for stable and efficient hydrogen evolution in seawater splitting. The nanoreactors exhibited high electrocatalytic activity and stability due to their unique structure, isolating the electrolysis from side reactions.
Researchers have developed a reusable, low-cost Mn catalyst that facilitates the alkylation of ketones with alcohols via the 'borrowing hydrogen' method. The catalyst achieves high yields and can alkylate ketone-containing substrates without byproducts.
A new study from the University of Oklahoma is investigating the use of carbon dioxide to produce acrylic acid, a key component in various household products. By replacing propene with CO2, researchers aim to reduce production costs and create a more valuable resource.
Researchers at Kyoto University have developed a new protocol for synthesizing dialkyl ethers using three catalysts that hydroxylate alkenes quickly and cheaply. This method enables the precise control of electrons and protons to convert unactivated alkenes into reactive carbocation equivalents under mild reaction conditions.
Researchers at Tokyo University of Science have developed a fast and facile synthesis method for antibacterial amino acid Schiff base copper complexes using microwave irradiation. The new technique produces high-purity products with promising antimicrobial activity, overcoming the challenge of long synthesis times.
Researchers at Karolinska Institutet have improved the ability of a protein to repair oxidative DNA damage, creating a new drug development concept. The technique can lead to improved treatments for diseases involving oxidative stress.
Scientists at Chung-Ang University have created a new catalyst that can efficiently generate hydrogen from water without the need for expensive noble metals. The innovative heterostructured material boosts both the half-reactions, improving its overall performance and paving the way for large-scale industrial applications.
Researchers developed a sustainable method of synthesizing diphenylmethanol derivatives using Chinese alumina, reducing waste and costs. The new method recycles alumina by washing it with water and drying between usages, making it an environmentally friendly alternative.
Researchers at MIT have designed a new type of photoredox catalyst that can be used to coat plastic tubing and perform chemical transformations on reactants as they flow through the tube. This breakthrough could enable the use of light-driven reactions in manufacturing processes, increasing efficiency and reducing waste.
Researchers have found a way to perform hydrogen atom transfer reactions with fewer chemicals and less cost, making it more efficient for industrial and academic settings. The new method uses electrochemistry to create cobalt hydride catalysts, reducing the need for expensive oxidants and reductants.
Researchers at Waseda University demonstrate a novel zirconocene-catalyzed epoxide ring-opening reaction under visible light, expanding the reaction scope and regioselectivity. The approach enables accessible synthesis of elusive alcohol products with improved efficiency and environmental sustainability.
Researchers have discovered a zirconium-based metal–organic framework material that catalyzes the degradation of PET into its monomers. This process can be reused to make high-value PET products, enabling the development of a circular economy. The catalyst breaks down PET waste at 260°C with yields up to 98%
MIT researchers devise a chemical reaction that allows them to synthesize phosphorus-containing rings using a novel spring-loaded molecule. This method enables the creation of useful compounds with potential applications in catalysts and pharmaceuticals.
Researchers develop an eco-friendly organic catalyst system that improves the production of organic molecules from pyruvate, a key biomolecule in metabolic pathways. The catalyst promotes reactions where pyruvate donates electrons to produce molecules like amino acids.
Scientists from Karlsruhe Institute of Technology (KIT) have successfully embedded enzymes in metal-organic frameworks to enhance their stability. This innovation enables the use of these enzymes in both aqueous and organic solvents, leading to improved productivity and stability in continuous reactors.
Scientists have created a 'greener' way to clean wastewater treatment filters by using glucose-based nanoparticles, which effectively remove contaminants without destroying the membrane. The new system is more cost-effective and environmentally friendly than traditional methods.
Researchers from Eötvös Loránd University have created a more efficient method for producing catalysts, which can speed up chemical transformations and reduce environmental impact. This breakthrough could lead to faster drug development and improved pesticide production.
Scientists from GIST developed a photoswitchable catalyst that deactivates upon UV light exposure, facilitating controlled chemical reactions. The research paves the way for sophisticated synthesis mechanisms in chemistry and applications like photolithography.
Researchers at UC Berkeley engineered bacteria to produce an unnatural molecule through a combination of synthetic chemistry and biology. This breakthrough enables the creation of previously impossible chemicals, paving the way for sustainable materials and innovative products.
Researchers at Kanazawa University developed a chemical reaction that cleaves the bond between an aryl halide and the halogen atom using an organic catalyst with low environmental impact. The process generates an aryl radical, which can be used for organic syntheses and further reactions.
KAUST researchers have developed a method to produce carbon monoxide from carbon dioxide using a porous crystal and silver catalyst. The new approach improved the selectivity of CO production by controlling the binding mode of activated carbon monoxide, resulting in a 94% efficient reaction.
Researchers developed a novel multifaceted catalyst to access transient carbocation intermediates, achieving regiocontrolled elimination reactions. The new catalyst produces ring-shaped molecules highly sought after in synthetic, organic, and pharmaceutical chemistry.
Chemists from RUDN University synthesized biopolymers based on chitin from crab shells, forming effective catalysts for organic reactions. The new catalysts can be reused over ten times without reducing yield or damaging nanoparticles.
Researchers have developed a novel heterogeneous catalyst combining intermetallic and support materials to improve Suzuki cross-coupling reaction stability and efficiency. The new Pd-ZrC catalyst exhibits high stability, large effective surface area, and enhanced catalytic performance compared to existing compounds.
Researchers at the University of Tokyo have developed new palladium catalysts for polymerization, enabling the efficient synthesis of isotactic polar polypropylene (iPPP) with high isotacticity. The discovery opens up new possibilities for creating specialty plastics with improved wettability or enhanced degradability.
A nanocatalyst made from zinc oxide and niobium can produce N-heterocycles with almost 100% efficiency, replacing expensive noble metal-based catalysts. The catalyst is derived from orange peel without additional chemical agents.
Tokyo Tech researchers have developed a heterogeneous ruthenium-based catalyst capable of driving direct amination of alcohols to produce primary amines without hydrogen gas. The system achieved higher yields and showed potential for reuse, making it a cost-effective and environmentally friendly method.
Researchers at Kazan Federal University have developed oil-soluble transition metal-based catalysts to reduce viscosity and contaminants in heavy oils. The study shows promising results, with potential applications in aquathermolysis reactions and heavy oil recovery.
Researchers at the University of Jyväskylä have discovered that the choice of a support material for gold nanocluster catalysts can drastically affect their structure. On certain supports, clusters disintegrate completely, while on others, the protective organic layer peels away, leaving behind intact metallic nanoclusters.
Scientists have developed a catalyst that directly converts carbon dioxide into formic acid using sunlight. The discovery marks a significant step towards creating an artificial photosynthesis system that efficiently converts CO2 into organic molecules.
Chemists have developed a titanium catalyst that makes light usable for selective chemical reactions, producing highly selective products that can be used for antiviral drugs or luminescent dyes. The new catalyst uses green light to trigger reactions without destroying organic compounds.
Researchers have developed artificial cells capable of decomposing hydrogen peroxide and generating oxygen, as well as implementing a rudimentary chemical signalling pathway between the cells. The new protocells use a combination of synthetic and biological catalysts to create multi-functional activity.
Scientists at KAUST have successfully combined four polymers to form a single substance using a novel approach called catalyst switching. This breakthrough could lead to the development of materials with enhanced properties, such as improved energy storage and tissue engineering applications.
Scientists at Tokyo Institute of Technology have created an organic catalyst that can convert carbon dioxide into industrially useful formate products. The catalyst, called tetrabutylammonium formate, achieved 99% selectivity and produced the desired product with a 98% yield.
Researchers create a surface acidity- and selectivity-tunable manganese oxide catalyst using enolic acetylacetones. The stable modification of acetylacetones influences the redox-acid cooperative catalysis of MnOx, enabling control over oxidation selectivities.
Researchers have developed a novel method to functionalize peptides using light-activated catalysis, allowing for the creation of new therapeutic agents. The method enables selective modification of the C-terminal position in peptides, opening up new possibilities for drug development.
Researchers at Kanazawa University have developed a novel metal-free catalyst to convert aldehydes into ketones, a crucial step in synthesizing pharmaceuticals. The new process enables the rapid synthesis of ketones with bulky substituents, accelerating drug discovery.