Articles tagged with Organic Reactions
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers at the University of Rochester have developed a new way to harness the properties of tungsten carbide as a catalyst for producing valuable chemicals and fuels. The method, which involves carefully manipulating tungsten carbide particles at the nanoscale level, has shown promising results in reducing costs and increasing eff...
Researchers at YOKOHAMA National University have designed a new class of mediators that more actively control electrocatalysis reactions, promoting efficient C-N bond formation. The mediators utilize redox-triggered halogen bonding to dynamically capture and organize substrates, leading to improved reaction efficiency and selectivity.
A study from OIST shows that abrasion from common additives can lead to efficient reactions under mechanochemical conditions. Abrasive materials like tungsten carbide or diamond powder activate catalysts and drive coupling reactions. This finding changes the way researchers think about mechanochemical catalysts.
Researchers have successfully reduced ozone-damaging nitrous oxide to harmless nitrogen using a new phosphetane-oxygen catalyst, creating a potential solution for reducing greenhouse gas emissions. The process can be repeatedly reused, offering grounds for hope in combating climate change.
Scientists have found new complex organic molecules spewing from Saturn's moon Enceladus, confirming that complex chemical reactions are taking place within its underground ocean. The discovery strengthens the case for a dedicated European Space Agency (ESA) mission to orbit and land on Enceladus.
Researchers at CARS create detailed maps of chemical reactivity, discovering regions of unexpected outcomes and reconstructing intricate reaction networks. This new understanding enables control over the formation of different major products from a set of starting materials.
Researchers at the University of Maine Forest Bioproducts Research Institute have discovered a sustainable method to produce (S)-3-hydroxy-γ-butyrolactone, a crucial building block in pharmaceuticals. This approach could significantly reduce greenhouse gas emissions and production costs by up to 60%.
A new study has revealed chemical signatures of ancient Martian microbial life in the Bright Angel formation, a region of Jezero Crater known for its fine-grained mudstones rich in oxidized iron and organic carbon. The findings suggest that early microorganisms may have played a role in shaping these rocks through redox reactions.
Researchers at Harvard SEAS have developed a gentler, more sustainable way to break down keratins and turn leftover wool and feathers into useful products. The process uses concentrated lithium bromide to create an environment favorable for spontaneous protein unfolding.
Researchers have developed a new catalysis method that can generate a diverse array of valuable compounds, including six distinct molecular scaffolds, using reprogrammed biocatalysts and sunlight-harvesting catalysts. The method opens up new possibilities for medicinal chemistry and accelerates combinatorial synthesis of novel molecules.
A new approach to the Chan-Evans-Lam reaction enables the synthesis of multiple natural products, including novel vinylic ethers. This breakthrough expands the potential for complex, biologically active compounds in drug research.
Researchers discovered a unique partnership between two microbes that work together as a living electrical network to consume methane, a potent greenhouse gas. The finding sheds light on how microorganisms naturally reduce methane emissions and could lead to innovative strategies to control methane release in various environments.
Researchers develop redox-adaptive auto-tandem catalysis using cerium to perform multiple reaction steps in a single container. This method reduces overhead and energy requirements, leading to lower costs and reduced chemical waste.
Researchers develop efficient template-guided method for synthesizing endo-functionalized oligophenylene cages with yields up to 68%. The approach enables precise control over internal environments, leading to selective molecular encapsulation and recognition capabilities.
Researchers at Ohio State University have developed a novel method to generate metal carbenes, highly useful for drug synthesis and materials development. The new approach is 100 times better than previous methods, making it easier and safer to produce these short-lived carbon atoms.
A team at Yokohama National University has developed an electrochemical method for highly selective single-carbon insertion into polysubstituted pyrroles, enabling the creation of structurally diverse pyridine derivatives. This approach has significant implications for synthetic organic chemistry and pharmaceutical synthesis.
A USC-developed shipboard system using limestone and seawater can remove up to half of carbon dioxide emitted from shipping vessels, cutting maritime CO2 emissions by 50%. The process mimics a natural chemical reaction in the ocean, where CO2 is absorbed into water pumped onboard and then neutralized through a bed of limestone.
Researchers at The University of Tokyo have developed a 'molecular flask' that modulates chemical reactions, allowing for the creation of specialized polymers in extremely small spaces. This breakthrough technology enables the production of complex materials with various applications, including optoelectronics and medicine.
Scientists developed an algorithm that can accurately simulate atomic interactions on material surfaces, reducing the need for massive computing power. This breakthrough enables the analysis of complex chemical processes in just two percent of unique configurations, paving the way for improved battery performance.
Researchers at Colorado State University have developed a more efficient light-based process for transforming fossil fuels into useful modern chemicals, effective even at room temperatures. The organic photoredox catalysis system uses visible light to alter chemical compounds, reducing energy demands and pollution in various industries.
Researchers at Tohoku University have developed a novel oxidation process using sonicated carbon nanotubes to remove industrial and municipal pollutants from contaminated water. The nonradical pathway achieves unprecedented removal rates within five minutes, targeting distributed water sources.
Researchers at Pohang University of Science & Technology have developed a novel iron-based catalyst that more than doubles the conversion efficiency of thermochemical green hydrogen production. The new catalyst, iron-poor nickel ferrite (Fe-poor NiFe2O4), enables significantly greater oxygen capacity even at lower temperatures.
Researchers have developed a new sensor to detect hazardous gas leaks in lithium-ion batteries, which could prevent catastrophic failures and enhance the reliability of battery-powered technologies. The sensor detects trace amounts of ethylene carbonate vapour, targeting potential battery failures before they escalate into disasters.
Mechanochemistry enables efficient generation of organolithium compounds, solving traditional synthesis challenges with simplified, solvent-free method. The new protocol achieves high conversion rates and reduces handling risks for technicians with limited experience.
Researchers at Case Western Reserve University developed a method to detect inflammation using antibodies, potentially leading to blood tests for disease-specific biomarkers. The breakthrough also holds promise for drug discovery.
Researchers developed a novel coating material that captures the brilliance of structural colors using melanin particles, producing non-iridescent color even when viewed from different angles. The coatings displayed a contact angle of over 160 degrees, monochromatic hues, and a self-cleaning surface.
A new theory predicts that a layer of mostly product at the interface determines the reaction rate in mechanochemical reactions. The force applied by the balls accelerates the reaction by reducing the thickness of the product-rich layer and inducing faster collisions between reactants.
Researchers at Tokyo University of Science have developed a new, highly selective and efficient method for synthesizing anti-cancer compounds. The innovative approach uses isopropyl magnesium bromide as a base to improve selectivity and scalability.
Researchers at Yokohama National University have developed an efficient way to hydrogenate nitrogen-containing aromatic compounds, reducing the industry's environmental footprint. The new method uses water and renewable electricity as energy sources, achieving high efficiency and scalability.
A research group from Osaka University has developed a novel green chemistry method to synthesize sulfonyl fluorides efficiently and with minimal environmental impact. This process uses easily accessible raw materials, thiols and disulfides, and produces only non-toxic sodium and potassium salts as byproducts.
Superheated flow technology leverages flow processes to operate above solvent boiling points, enhancing reaction rates and improving productivity and safety. This guide aims to facilitate the adoption of this innovative approach in organic synthesis.
Lehigh University researchers developed a novel spectroscopy technique called modulation excitation spectroscopy (MES) to study selective catalytic reduction (SCR) of nitrogen oxides. The results, published in Nature Communications, reveal the correct reaction pathway and have significant implications for optimizing catalytic converters.
Researchers at Okayama University developed a novel method for the total synthesis of scabrolide F, a natural marine compound. The study revealed that synthetic scabrolide F and its related compounds exhibited strong antifouling activity without toxicity, making it a potential solution to prevent biofouling damage.
Researchers at Okayama University developed a switchable process to synthesize 3-aminoindolines and 2'-aminoaryl acetic acids from a common substrate using Grignard reagents and azide compounds. The new protocol utilizes tautomerism to control chemoselectivity and achieves efficient synthesis with good yields.
Researchers have developed a novel technique using a new holmium catalyst for synthesizing hydrocarbazoles with tetrasubstituted carbon. The method uses a lanthanide-based catalyst and can be recycled, paving the way for sustainable chemical processes.
A team of researchers from Chiba University has developed a novel one-step process for indole C5-selective bromination of MTIAs, achieving selective modification at the notoriously challenging indole C5 position. The method operates under mild reaction conditions and accommodates various functional groups.
Researchers at Osaka University have developed systematically designed molecules that absorb near-infrared light but not visible light, paving the way for new applications in electronics. The new compounds show promise in areas such as solar cells, transistors, chemotherapy, and photodetectors.
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.
Researchers at Colorado State University have developed a new approach to speed up the development of pharmaceuticals and pesticides. By deconstructing and reassembling common compounds known as heterocycles, scientists can rapidly change their characteristics without extensive synthesis.
A Japanese research team has developed a framework that accurately describes how first-order reactions appear depending on the time interval used to measure the reaction. The work uses a 'shutter speed' analogy to simplify complex molecular changes, allowing for precise predictions of reaction outcomes.
A team of researchers from the University of Maryland has developed a novel way to produce and observe carbenes, a class of highly reactive molecules necessary for life. They successfully formed a carbene called hydroxymethylene (HCOH) by breaking down methanol with pulses of ultraviolet radiation.
Researchers at Yokohama National University utilized machine learning and AI to predict the selectivity of chemical reactions. By analyzing molecular factors such as sterics and orbitals, they developed a method to better understand reaction mechanisms, leading to more efficient synthesis of desired products.
Researchers discovered that adding water-resistant materials to an electrode can dramatically speed up chemical reactions in water, known as 'fouling'. This process can increase reaction rates up to six times faster than traditional methods. By leveraging this method, the chemical industry may be able to reduce its reliance on fossil f...
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...
Researchers at Tokyo Institute of Technology developed a new strategy to synthesize 3D π-extended carbohelicenes, overcoming molecular distortions and achieving CPL brightness of up to 513 M–1 cm–1. The study provides a solid groundwork for further research and development of high-performance carbohelicenes.
A team of scientists at Tokyo University of Science has discovered a novel substituent migration reaction that enables the creation of complex benzofurans. This breakthrough synthesis method uses alkynyl sulfoxide and trifluoroacetic anhydride to produce highly functionalized benzofurans with high yields.
A new statistical-modeling workflow can quickly identify molecular structures of products formed by chemical reactions, accelerating drug discovery and synthetic chemistry. The workflow also enables the analysis of unpurified reaction mixtures, reducing time spent on purification and characterization.
Researchers at Xi'an Jiaotong-Liverpool University developed a new method that enables the efficient production of cysteine-rich peptides and microproteins in their naturally folded 3D structure. The approach uses organic solvents to mimic nature's oxidative folding process, resulting in speeds of over 100,000 times faster than aqueous...
Researchers from Osaka University developed an economical catalyst for a common chemical transformation, replacing rare metals with cheaper substitutes like nickel. The novel catalyst showed high activity, reusability, and high yields.
Researchers developed a platform combining automated experiments with AI to predict chemical reactivity, greatly accelerating the design process for new drugs. A machine learning model predicts where molecules will react and how reaction sites vary under different conditions, enabling precise tweaks to complex molecules.
Scientists from Osaka University and collaborators identify environmentally friendly reaction conditions for producing peracids, overcoming wasteful and dangerous chemical synthesis methods. The optimized process uses sunlight and oxygen, allowing for safe and cost-effective production of essential chemicals.
A research team at Osaka University has found a way to synthesize alkylamines in a sustainable and cost-effective manner, using a novel catalyst system that produces only water as a byproduct.
A team at Hokkaido University has developed a method to reuse plastic waste while improving process safety and efficiency. The approach uses common plastic materials to initiate radical chain reactions, detoxifying hazardous chemicals and reducing toxicity.
The Janelia Fluor dyes have become a staple in biology labs worldwide, and the team has now expanded their spectrum with a new set of far-red shifted dyes that can penetrate deeper into tissue. The researchers developed a novel chemistry to synthesize these dyes, enabling them to create dozens of functional versions relatively quickly.
Researchers successfully developed a novel method for transforming atropisomers into specific enantiomers using the Pauson–Khand reaction. The reaction achieved high enantiomeric excesses and selectivity, opening up new avenues for synthesizing pharmaceutical compounds.
A UNIGE team has developed an electrical device that can activate and accelerate chemical reactions using a simple electric field. The device, called an electrochemical microfluidic reactor, enables chemists to control chemical reactions with ease, reducing the need for complex strategies and resources.
Researchers at Hokkaido University have discovered a mechanism for carbon atoms to come together on the surface of interstellar ice grains, producing complex organic molecules. This process occurs at temperatures above 30 Kelvin and may have played a role in the origin of life on Earth.
Researchers at Kobe University have successfully synthesized polycarbonate using the photo-on-demand interfacial polymerization method, offering a safe and practical scale, high-yield synthesis. This new method reduces synthesis costs, saves on purification, and minimizes environmental impact compared to traditional methods.
Researchers used ultrafast electron diffraction to image the pericyclic minimum, a critical geometry in electrocyclic reactions. The study reveals that stereospecificity arises from the change of double bonds, not the exact motion, allowing for more precise synthetic chemistry tools.
A chemical process used by cooks to create flavors and aromas is believed to have helped create conditions for complex life to evolve on Earth. The Maillard reaction, also known as the browning of food, converts small molecules into larger ones that are harder for microorganisms to break down.