Articles tagged with Organic Catalysts
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.
Researchers at the University of Science and Technology of China have developed a simple, efficient, and non-metallic anionic composite photocatalytic system to free trapped radicals from carboxyl groups. This breakthrough simplifies photocatalytic systems, reduces costs, and promotes industrialization in organic synthesis.
Researchers at the Weizmann Institute of Science have developed a chemical storage system based on simple and abundant organic compounds. The system uses ethylenediamine and methanol to store and release hydrogen with high theoretical capacity and efficiency.
Researchers developed a strategy to design single-atom catalysts for CO2 transformation, exhibiting superior activity and stability. The Ir-based catalyst shows the best performance yet for heterogeneous conversion of CO2 to formate.
A dirhodium catalyst makes an inert C-H bond reactive, turning chemical 'trash' to 'treasure.' The catalyst achieves exquisite control over the reaction, producing value-added molecules with high selectivity and minimal byproducts.
Researchers have developed a new efficient catalyst to synthesise aromatic amines, which are central building blocks in many drugs and pesticides. The system is more active than conventional catalysts, enabling faster and more efficient production of these compounds.
Researchers at RUDN University found the mercury test ambiguous and required additional control experiments to verify results. This discovery may lead to reevaluating existing experimental data and improving catalysis mechanisms in chemical reactions.
Scientists at Sechenov University developed an eco-friendly way to obtain highly active catalysts using supercritical CO2. The new method produced metal-polymeric catalysts with high activity in hydrogenation reactions, offering a safer and cheaper alternative to traditional organic solvents.
Researchers at Hokkaido University have developed a hybrid catalyst that combines simple rhodium and organic catalysts to selectively produce molecules with high enantiomer selectivity. This technology is expected to assist in rapid and low-cost drug synthesis, particularly for nucleotide medicine.
Scientists have developed a new catalyst that can integrate fluorine atoms into organic molecules, improving pharmaceuticals and medical imaging technology. The catalyst is specifically tuned to perform the same function as biological enzymes but is more widely applicable and has been designed using computational analysis.
A team of Russian chemists has developed a new rhodium catalyst for organic synthesis, enabling the creation of complex molecular frameworks of antifungal agents. The catalyst's asymmetrical design allows for full spatial control over reaction outcomes.
Researchers at Kanazawa University have successfully synthesized a ketone from an aldehyde using the synergistic action of an organocatalyst and a palladium catalyst in one flask. This novel protocol enables simple and mild synthesis under conditions that previously required complex chemical reaction steps or metal reagents.
Researchers have proven the effectiveness of copper nanoparticles as a catalyst for organic synthesis reactions, which is an ideal alternative to toxic heavy metal catalysts like palladium. The use of copper nanoparticles offers numerous benefits, including lower costs, improved selectivity and yields, and recyclability.
Chemists at Emory University have developed a new catalyst that selectively activates a carbon-hydrogen bond without using a directing group. The breakthrough holds promise for the pharmaceutical industry and could lead to new classes of drugs.
A team of scientists created a new catalyst that activates oxidation processes in low-reactive components of oil and gas, producing valuable products such as acids and alcohols. The researchers discovered the possibility of targeted production of pentanuclear products, which are stable in both solid and solution states.
Researchers at Tohoku University have created a new synthesis route for alternative catalysts of noble metals, overcoming stability issues with organic-based and carbonaceous materials. This breakthrough could lead to more efficient and cost-effective eco-friendly technologies, including fuel cell vehicles and CO2 reduction.
Researchers developed polypeptide catalysts that function efficiently in water, which could reduce the use of organic solvents and toxic waste in chemical processes. The discovery has potential applications in pharmaceutical, agrochemical, and food industries.
Researchers created a new family of organocatalysts that can be 'switched on' using purple LEDs, mimicking human vision's colorful light-sensitive molecule formation. The novel approach enables the formation of single-handed isomers with improved therapeutic profiles and reduced environmental impact.
A bifunctional CePO4 catalyst facilitates the non-dissociative activation of electrophiles and nucleophiles, allowing for chemoselective acetalization of biomass-derived HMF with alcohols. The reaction proceeds under extremely mild conditions, yielding a wide range of industrially important acetals including solketal.
Researchers have developed a new ruthenium-based material, Ru@c?N, that can split water into hydrogen with high efficiency and durability. The catalyst exhibits high turnover frequency and is not affected by the pH of the water, making it suitable for various environments.
Researchers at MIT and Boston College developed a new type of catalyst that can incorporate trifluoromethyl groups into various organic molecules. This breakthrough enables the rapid generation of potential new fluorinated drugs, including antibiotics and anticancer agents.
A research team at the University of Geneva has discovered that sulfur can act as an effective catalyst, transforming molecules with greater precision than hydrogen. This breakthrough enables chemists to exercise increased control over molecular transformations, paving the way for the creation of new materials and applications.
A team of chemists has developed a process to identify new catalysts for synthesizing drugs more efficiently and cheaply. By examining libraries of drugs, they found highly effective ligands that can improve reactions beyond those reported nearly four years ago.
Nanocatalysts display significant catalytic capability due to increased surface area and multiple catalytic centers. They play a crucial role in enhancing yield and TON in specific chemical products, including chemo-selective and coupling reactions.
Researchers at the University of Texas at Dallas have discovered new catalyst materials for lithium-air batteries that can increase capacity by five times. The breakthrough could enable electric cars to drive 400 miles on a single charge and mobile phones to last a week without recharging.
Researchers have developed a method to selectively functionalize unreactive carbon-hydrogen bonds in alkanes, a key step towards revolutionizing organic synthesis. The breakthrough enables the transformation of simple molecules into valuable chemicals with controlled site selectivity and chirality.
Researchers at Kazan Federal University have developed a new, environment-friendly catalyst for polyethylene production that can be produced from waste materials. The low-cost process is expected to play a significant role in the commercialization of the project with Tatarstan's Kazanorgsintez.
Researchers at TUM create self-assembled catalyst to facilitate terpene cyclization, enabling production of complex compounds like taxol, used in cancer treatment. The breakthrough yields higher yields and improves reaction feasibility.
A team of Caltech chemists has discovered a method to produce silicon-containing organic chemicals without using expensive precious metal catalysts. Potassium tert-butoxide, a cheap and abundant chemical, is more effective at running challenging chemical reactions than state-of-the-art precious metals.
A new metal-free atom transfer radical polymerization process using an organic-based photocatalyst and light has been developed by researchers at UC Santa Barbara. This process overcomes the use of heavy metal catalysts like copper, which is a major roadblock in applications such as biomedical purposes.
Scientists at Technical University of Munich have discovered a way to create natural substances using photoreactions and a special catalyst, reducing the formation of unwanted mirror-image variants. This method has potential for industrial applications in drug development and plant protection.
A new type of organocatalyst, using halogen bridges, is introduced as a potentially environmentally friendlier alternative to existing catalysts. This catalyst shows special properties that open up new avenues for application in organic reactions.
Researchers developed an inexpensive and green procedure for catalytic acetylation of phenols and alcohols using Amberlyst-15. The catalyst exhibits excellent potential for sustainability, allowing mild and selective transformations under heterogeneous conditions.
A Boston College research team has designed novel small-molecule catalysts triggered by a single proton, enabling efficient and selective fine chemical synthesis. The catalysts, derived from abundant amino acid valine, promote reactions at room temperature with minimal waste generation.
L. Keith Woo is searching for cleaner chemical reactions by studying iron porphyrins, a type of enzyme that catalyzes oxidation and electron transfer reactions. His research aims to develop more efficient catalysts that promote reactions at lower pressures and temperatures, reducing waste and creating safer alternatives.
Emory chemists develop most potent homogeneous catalyst for water oxidation, a crucial component for clean hydrogen fuel. The cobalt-based catalyst surpasses previous WOCs in selectivity, stability, and speed.
Researchers have developed a method of catalysis that uses a weak light source, like a household light bulb, to propel chemical reactions, enabling the creation of new compounds. This discovery has the potential to revolutionize fields such as pharmaceuticals and agriculture.
Karl Scheidt and his team have synthesized 10 different flavanones, a type of flavonoid, using a new general method that takes advantage of one simple catalyst. The findings provide a method for making new molecules based on flavonoids, setting the stage for the development of new cancer therapeutics.
A team of Princeton University chemists has discovered a new method to synthesize molecules without toxic catalysts, reducing the risk of hazardous barriers in drug development. This breakthrough opens up new possibilities for working with ketones and aldehydes, potentially leading to more efficient synthesis of beneficial enantiomers.
Purdue University researchers have discovered a catalyst that can produce hydrogen without extreme cold temperatures or high pressures. This method could offer solutions to fuel cell development, potentially replacing fossil fuels in automobiles.
The discovery of organic zeolites with functionalized methyl and methylene groups marks a significant step forward in creating catalysts that mimic enzymes. The incorporation of these organic materials into the structure of silicate-based zeolites could promote novel reactions with improved selectivity.
Grubbs designs catalysts that target carbons in molecules, breaking open double bonds to form new materials with tailored properties for plastics or pharmaceuticals. The ACS Award for Creative Research in Homogeneous or Heterogeneous Catalysts recognizes his work in improving reaction rates and efficiency.