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Chemistry World April 19, 2012 Amy Middleton-Gear |
Catalyst delivery and recovery using MOFs Although heteropolyacids are excellent homogeneous polyoxometalate catalysts, recovering these molecules at the end of a reaction is often tricky and can have an impact on their application. |
Chemistry World September 7, 2009 |
Bolt-on MOF catalysts Chemists in the US have shown that a class of hugely porous materials called metal-organic frameworks (MOFs) can have catalytic functions bolted onto the structure after it has been constructed to produce efficient catalysts that can be easily recovered and cycled many times. |
Chemistry World September 13, 2013 Anthony King |
Spinning a catalytic yarn Scientists in Germany have revealed a revolutionary new support for catalysts -- cloth. They succeeded in permanently securing organocatalysts onto nylon using ultraviolet light, without any need for chemical modification. |
Chemistry World May 30, 2013 Andy Extance |
Catalyst duo exerts powerful stereocontrol Chemists from the Swiss Federal Institute of Technology, ETH Zurich, have teamed chiral catalysts in pairs to selectively drive a reaction towards desired stereoisomeric products with high selectivity. |
Chemistry World March 20, 2008 James Mitchell Crow |
Surfactants Help Reactions Work in Water Scientists have discovered a surfactant that allows the catalytic organic reactions commonly used to assemble organic structures such as drug molecules to be run in water. |
Chemistry World December 23, 2015 Karl Collins |
Scratching chiral surfaces There are numerous challenges to developing reactions that exploit chiral surfaces, or employ molecular modifiers (ligands) to create a chiral surface environment and control the stereoselectivity of a transformation. |
Chemistry World April 28, 2011 Elinor Richards |
Hardy MOFs endure extreme conditions The most chemically and thermally stable metal-organic frameworks yet have been made by a team in the US. |
Chemistry World July 26, 2007 Tom Westgate |
Counterion Does the Twist US chemists have achieved a breakthrough in the design of catalysts that selectively produce chiral compounds. |
Chemistry World April 7, 2015 Hugh Cowley |
The Goldilocks of heterogeneous catalysis An international team of scientists has tethered palladium to a metal -- organic framework support using thiol groups normally associated with catalyst poisoning |
Chemistry World September 20, 2007 Lewis Brindley |
New Catalyst Rings the Changes Organic chemists in the US have developed a method to control the stereochemistry of a useful intramolecular Diels-Alder reaction. |
Chemistry World December 17, 2009 Simon Hadlington |
Single catalyst gives two products from racemic mixture Chemists in the US have demonstrated a remarkable reaction in which a single catalyst can transform a racemic mixture - molecules identical in every way except for their chirality - into two distinct enantiomerically pure products. |
Chemistry World June 19, 2008 Hepeng Jia |
Chemistry dominates list of China's most influential papers The Thomson Reuters Research Fronts Award recognized a total of 24 key journal articles - including seven chemistry papers and two from the material sciences - for their outstanding contribution to international R&D. |
Chemistry World October 16, 2015 Philippa Matthews |
One pot recipe for incompatible catalytic transformations Researchers from the US have demonstrated a new catalyst support structure allowing two incompatible catalysts to work in tandem. |
Chemistry World November 17, 2008 Simon Hadlington |
Catalyst flexes for extra control US chemists have developed a new type of catalyst capable of exerting high stereochemical control over olefin metathesis reactions |
Chemistry World June 1, 2006 Michael Gross |
New Twists on Catalysis Chemists around the world have discovered several new twists to improve the performance of asymmetric catalysts in hydrogenation reactions. |
Chemistry World December 3, 2010 Elinor Richards |
Graphene catalyst comes out on top Sulfonated graphene solid acid catalysts could be cheap, environmentally friendly alternatives to concentrated sulfuric acid for use in industry because they can be recycled, say scientists from China. |
Chemistry World June 10, 2010 Phillip Broadwith |
A green and salty chiral catalyst An efficient, chiral, salt-based hypervalent iodine catalyst has been discovered by Japanese chemists that could replace toxic metal catalysts without generating the waste or explosion risks associated with hypervalent organo-iodine complexes. |
Chemistry World January 8, 2014 Karl Collins |
Oxidation station Small molecules are making significant inroads -- with reactivity and selectivity approaching levels previously thought unachievable. |
Chemistry World January 25, 2007 Richard Van Noorden |
Water Surprise for Atmospheric Scientists Lone water molecules can catalyze reactions between atmospheric gases, scientists have confirmed, throwing a wrench in the works of supposedly simple atmospheric chemistry. |
Chemistry World October 18, 2011 Steve Down |
Cofactor Control of Catalysis Enantioselectivity Scientists have used cofactors to control the enantioselectivity of supramolecular transition metal catalysts, enabling the asymmetric hydrogenation of a series of acrylates and related compounds with remarkably high selectivities. |
Chemistry World May 29, 2015 Derek Lowe |
Magic molecule modifiers The synthesis of a new organic molecule can be approached in several ways. |
Chemistry World December 5, 2012 Phillip Broadwith |
Chemical reactions in hot water Chinese and Japanese chemists have highlighted hot water's ability to promote unexpected reactions without any other reagents or catalysts. The work should expand our understanding of how to harness the physicochemical properties of water to potentially replace more complex reagents and catalysts. |
Chemistry World September 9, 2011 James Mitchell Crow |
High-throughput catalyst screening for the masses Using nothing more than the standard chemistry lab equipment, researchers in the US have successfully turned the discovery of new catalytic reactions into a high-throughput process. |
Chemistry World February 6, 2015 Elisabeth Ratcliffe |
Exploiting the chirality of DNA DNA has emerged as an innovative way of controlling the chirality of a reaction product by binding catalysts in such a way that one enantiomer is preferentially generated. |
Chemistry World April 18, 2012 Elinor Richards |
Homogeneous Catalyst Recovery Made Easier Scientists have now found a way to recover homogeneous catalysts at the end of a chemical reaction that doesn't suffer from the slow reaction rates that affect current catalyst recovery systems. |
Chemistry World April 28, 2010 Mike Brown |
Producing hydrogen from sea water A new catalyst that generates hydrogen from sea water has been developed by scientists in the US. |
Chemistry World October 1, 2014 Karl Collins |
Twisting activity from amides When I think of asymmetric aldol reactions, what immediately springs to mind is using boron to control enolate geometry and chiral auxiliaries to impart facial selectivity in the addition step. |
Chemistry World February 1, 2012 Jon Evans |
Two become one for bio-oil upgrade The development of a couple of new and improved catalysts for upgrading bio-oil is bringing this novel approach to producing biofuels a step closer to the big time. |
Chemistry World April 25, 2014 Derek Lowe |
Engineering serendipity At this stage in the world of organic chemistry, you'd have to think that many of the great reactions that can be stumbled across with known reagents have probably been found. |
Chemistry World June 9, 2009 Simon Hadlington |
Super sponges soak up gas Researchers in the US have shown that a recently discovered class of compound based on light elements can store gas at least as efficiently as the most promising metal organic framework candidates. |
Chemistry World November 12, 2008 Lewis Brindley |
Microscope Reveals Catalyst Secrets A promising technique for watching catalysts in action could provide new insights into how they work, report scientists in the Netherlands. |
Chemistry World April 6, 2009 Nina Notman |
Torn catalysts help polymers heal themselves Catalysts that are activated by a mechanical force tearing them in two have been designed by Dutch scientists. |
Chemistry World May 5, 2009 Simon Hadlington |
Keeping MOF pores open wide Chemists have developed a way of preventing metal-organic frameworks - hugely porous materials with enormous potential for storing a range of molecules and other structures - from 'clogging up' during synthesis. |
Chemistry World April 4, 2008 James Mitchell Crow |
More to Catalysis Than Meets the Eye Catalysts are more than just a reactive surface. Changes beneath a metal's skin can completely change the course of a reaction. |
Chemistry World March 8, 2011 Jon Cartwright |
Carbon nanotubes - a boon for chiral catalysts Researchers in China have created a new catalyst that could help in the production of chiral molecules for medical drugs. The catalyst, which consists of platinum nanoparticles encapsulated in carbon nanotubes, is the most active of its type ever reported. |
Chemistry World August 20, 2008 |
Gold's Magic Number A new gold catalyst developed by UK chemists can catalyse hydrocarbon oxidation, using O 2 as the only oxidant. But catalyst particle size is critical - above 2nm diameter, the catalyst loses all activity. |
Chemistry World November 28, 2013 Andy Extance |
Base metal catalysts strike hydrogenation gold Three teams have shown that chemists need not rely only on expensive and toxic precious metal catalysts for hydrogenation -- they've found complementary alternatives based on cheap, abundant and safer transition metals. |
Chemistry World April 25, 2010 Hayley Birch |
New strategy yields best ever catalyst for ammonia decomposition US researchers have developed a new strategy for predicting bimetallic catalysts. |
Chemistry World September 6, 2006 Michael Gross |
Selective Shortcut Chemists have developed a simple catalyst that speeds up the synthesis of a chiral protected building block used in many complex syntheses. |
Chemistry World October 1, 2010 Hayley Birch |
On-off catalyst mimics enzyme function US and Japanese researchers have created an enzyme-like catalyst whose activity can be switched on or off using small molecules. |
Chemistry World June 27, 2013 Emma Eley |
Sustainable iron catalyst for clean hydrogenation An international team of chemists has reported a clean and green way to perform one of the most important industrial reactions for pharmaceutical and petrochemical synthesis. |
Chemistry World August 22, 2014 Derek Lowe |
Death of a reagent Anyone who's been practicing organic chemistry for a while can think back to reactions and reagents that were once in far wider use than they are today. |
Chemistry World November 26, 2012 Laura Howes |
Protein coat prepares catalyst for cascades By protecting a transition metal catalyst with a protein coat, scientists have managed to couple up biocatalysts and chemical catalysts to perform a cascade reaction. |
Chemistry World January 25, 2008 Simon Hadlington |
Catalysis Probed with MRI Scientists have developed a way of peering into a microreactor to watch gases react on a solid catalyst. |
Chemistry World December 14, 2012 Jon Cartwright |
Pico-gold clusters break catalysis record Chemists in Spain have shown that small clusters of gold atoms are excellent inorganic catalysts with record-breaking efficiency. |
Chemistry World December 3, 2014 Cally Haynes |
One rotaxane, two catalytic stories A two-site supramolecular catalyst that can be programmed to mediate different reactions depending on its conformation has been designed by researchers in the UK. |
Chemistry World January 25, 2013 Derek Lowe |
Name reactions: how does the label stick? Some of these names go back to the 19th century, and many more of them come from the first decades of the 20th. Once in a while, I wonder if the tradition is dying out. Are we still naming chemical reactions after their discoverers? |
Chemistry World February 9, 2012 Simon Hadlington |
Molecule mimics molybdenum catalyst Chemists in the US have created a molecule that closely resembles the key active portion of molybdenum disulfide, an important solid industrial catalyst that shows promise for the generation of hydrogen from water. |
Chemistry World January 6, 2010 Phillip Broadwith |
Enzymes do the twist The way enzyme catalysts bind molecules to speed up their reactions is not as simple as once thought, say chemists from the UK and Spain. |
Chemistry World October 2009 |
Column: In the pipeline Derek Lowe discusses the problem of leaning too heavily on favorite reactions |