Iridium-catalyzed Z-retentive asymmetric allylic substitution reactions
In synthetic organic chemistry, Z-olefins are a challenging synthetic target to produce in the lab due to their relative thermodynamic instability. The Z-olefins form an unsaturated compound with a CnH2n formula that can be readily isomerized. Analog.....»»
An online tool can help researchers synthesize millions of molecules
Enzymes are substances that cause chemical reactions. Certain types of enzymes, such as polyketide synthases and nonribosomal peptide synthetases, have the ability to shuffle their parts, allowing them to produce new chemicals. If scientists can unde.....»»
Micelles—the meeting place boosting reactions and interactions
The occurrence of chemical reactions between like-charged compounds in aqueous solutions is very slow since particles repel each other. A recent breakthrough published in Nature Communications shows a new way to control chemical reactions by charge n.....»»
Advancing our mastery of stereoselective photoredox reactions to produce mirror-image molecules
Researchers of the Max-Planck-Institut für Kohlenforschung have expanded the molecular toolbox for efficient, targeted syntheses: To do so, they use a very special catalyst—and the energy of light. The result of their work has now been published i.....»»
Building better enzymes—by breaking them down
Enzymes have the potential to transform the chemical industry by providing green alternatives to a slew of processes. These proteins act as biological catalysts, and with the help of molecular engineering, they can make naturally occurring reactions.....»»
Researchers devise a new way to control "3D" effects in chemical reactions
Researchers have observed steric effects—the interactions of molecules depending on their spatial orientation (not just between their electrons involved in bonding)—in a chemical reaction involving non-polar molecules for the first time. The brea.....»»
Google Meet now features In-Meeting Reactions
The latest addition to the company's signature video-conferencing software brings a seemingly minor but interesting feature to the app. The post Google Meet now features In-Meeting Reactions first appeared on Phandroid. Google has wasted no.....»»
Light-driven CO2 assimilation by photosystem II and its relation to photosynthesis
Photosynthesis is the greatest natural process on Earth, converting sunlight into chemical energy on a massive scale and maintaining life. There are basically two successive stages of oxygenic photosynthesis, of which the light-dependent reactions in.....»»
Android one-ups Apple’s satellite SOS with general-purpose satellite SMS
Qualcomm packs traditional Iridium satellite compatibility into a normal phone. Enlarge (credit: Qualcomm) Hey, Android users! Are you jealous of the iPhone 14's ability to connect to satellites? Well, it's been a few m.....»»
Ultrafast and ultra-sensitive protein detection method allows for early disease diagnoses
Protein detection based on antigen–antibody reactions is vital in early diagnosis of a wide range of diseases. How to effectively detect proteins, however, has frequently bedeviled researchers. Osaka Metropolitan University scientists have discover.....»»
Drying process could be key step in development of life
One-hundred fifty years ago, Charles Darwin speculated that life likely originated in a warm little pond. There, Darwin supposed, chemical reactions and the odd lightning strike might have led to chains of amino acids that, over time, became more and.....»»
Theoreticians discover why optical cavities curb the rate of chemical reactions
Chemical reactions occur on the scale of atomic vibrations—one million times smaller than the thickness of a human hair. These tiny movements are difficult to control......»»
Chemists develop reactions for the general synthesis of promising unexplored compounds
Chemists at Scripps Research have devised the first general method for synthesizing a family of compounds called 1,2,3,5-tetrazines, which hold great promise for making pharmaceuticals, biological probes and other chemical products......»»
Exploring nanodiamonds that can be activated as photocatalysts with sunlight
Nanodiamond materials have great potential as catalysts. Inexpensive nanoparticles made of carbon provide very large surfaces compared to their volume. However, to catalytically accelerate chemical reactions in an aqueous medium, electrons from the c.....»»
Method predicts accurate stereochemistry of pericyclic reactions using only target molecule structure
Researchers at the Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) have demonstrated the expanded use of a computational method called the artificial-force-induced reaction (AFIR) method, predicting pericyclic reactions with accurat.....»»
Scientists develop novel mode of linear hybridization chain reaction
Hybridization chain reaction refers to an enzyme-free nucleic acid polymerization reaction. A target molecule triggers cascade hybridization reactions by several thermodynamically stable DNA fuel strands, producing ultra-long DNA nanostructures with.....»»
Researchers take first step toward controlling photosynthesis using mirrors
With the help of mirrors, placed only a few hundred nanometers apart, a research team has managed to use light more efficiently. The finding could eventually be useful for controlling solar energy conversion during photosynthesis, or other reactions.....»»
Do acquisitions harm the acquired brand? Identifying conditions that reduce the negative effect
Researchers from University of Leeds, University of Vienna, and University of Pennsylvania published a new Journal of Marketing article that examines why consumers develop negative reactions towards acquired brands and explains conditions that attenu.....»»
Researchers introduce a Persian language tool for evaluating aesthetic responsiveness
Some people have strong reactions to art and music, others hardly any. In 2020, researchers at the Max Planck Institute for Empirical Aesthetics (MPIEA) in Frankfurt am Main, Germany, developed a method that scientists can use to predict the general.....»»
Shining a new light on the importance of a critical photosynthesis pathway in plants
Photosynthesis is one of the most important chemical reactions, not just for plants but also for the entire world. The impact and thus the importance of photosynthesis can scarcely be underestimated. Thus, it makes sense that science has long been fa.....»»
The transformation between different topological spin textures
Skyrmions and bimerons are fundamental topological spin textures in magnetic thin films with asymmetric exchange interactions, and they can be used as information carrier for next generation low energy consumption memory, advanced neuromorphic comput.....»»