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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 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 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 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 July 16, 2013 Harriet Brewerton |
Accelerating stereochemical analysis A chemosensor has been developed by scientists in the US to speed up the quantitative stereochemical analysis of chiral amino alcohols and diamines. |
Chemistry World May 9, 2010 Phillip Broadwith |
Iron catalyst breaks the mold An iron catalyst that is not only greener than many of its precious metal competitors, but also catalyses reactions that they can't, could open new avenues in transition metal catalysis, say Chinese researchers. |
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 April 19, 2009 Hayley Birch |
Chiral metals shape up for catalysis Dutch and Israeli scientists have found a way to induce the chirality usually only found in organic materials in palladium. |
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 November 3, 2014 Debbie Houghton |
Engineered metalloenzyme catalyses Friedel -- Crafts reaction Reprogramming the genetic code of bacteria to incorporate an unnatural amino acid has allowed scientists in the Netherlands to create a new metalloenzyme capable of catalyzing an enantioselective reaction. |
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 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 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 February 21, 2008 Lewis Brindley |
Esters Made Easy with Indium Indium is the basis of a novel catalyst designed to make useful cyclic esters. This catalyst could greatly simplify the production of chiral dihydropyranones, important structural elements in many natural products and pharmaceuticals. |
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 August 2, 2013 Amy Middleton-Gear |
Homogeneous catalyst made to act more like an enzyme Homogeneous catalytic systems which display selectivity in a mixture of similar substrates are rare. Now scientists have shown that encapsulating a homogeneous catalyst in a supramolecular host can give it a more discerning nature. |
Chemistry World June 17, 2010 Andrew Turley |
Biocatalyst improves diabetes drug production Researchers have developed an enzyme that can produce a difficult to form chiral amine in a best-selling diabetes therapy. |
Chemistry World July 16, 2015 Jenny Lovell |
Alkyne insertion imparts silicon stereochemistry Scientists in Japan have reported a way of inserting alkynes into carbon -- silicon bonds, also known as alkynylsilylation, that creates silicon stereogenic centers with high enantioselectivity. |
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 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 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 July 15, 2010 Simon Hadlington |
Synthetic enzyme catalyses Diels-Alder reaction The reaction is key to many organic syntheses and suggests that artificial enzymes could soon become part of the synthetic chemist's toolkit. |
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 February 13, 2013 James Mitchell Crow |
Tapping proton power for enantioselective synthesis A simple proton is the key to a novel approach by US-based chemists to synthesize chiral amines and alcohols -- a structural motif common to many organic molecules with pharmaceutical promise. |
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 November 7, 2014 Katrina Kramer |
Stressed ligands switch catalysis selectivity Researchers have discovered that enantioselectivity in palladium-catalyzed reactions depends on the ligand's intramolecular strain. |
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 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 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 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 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 September 22, 2015 Andy Extance |
Firming COFs up takes Michael reaction catalysis forward By making formerly fragile covalent organic frameworks resistant to harsh conditions, researchers have created what they think could be a powerful new catalyst concept. |
Chemistry World March 23, 2009 Hayley Birch |
Speeding up screening for chiral catalysts U.S. researchers say their method represents a 'standard workhorse' for discovery and optimisation of chiral catalysts, such as those widely used by the pharmaceutical and pesticide industries. |
Chemistry World October 15, 2015 Emma Stoye |
Cobalt could cut costs for pharma ingredients A new kind of cobalt catalyst can be used in the hydrogenation of esters and carboxylic acids to alcohols without the need for extremely high temperatures or expensive precious metals. |
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 December 3, 2009 Hayley Birch |
Bio-Inspired Catalyst Design Could Rival Platinum French scientists have demonstrated the potential of a new fuel cell catalyst inspired by hydrogenase enzymes. |
Chemistry World October 14, 2009 James Urquhart |
New route to amino acids US scientists have found a new way of making a class of non-natural amino acids that are widely used as components of pharmaceuticals and chiral catalysts. |
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 5, 2008 Richard Van Noorden |
Cheaper Catalysts Designed by Computer Researchers have used computer calculations to discover cheap alloys that selectively catalyse an industrial reaction better than the current expensive systems. |
Chemistry World May 15, 2014 Jenifer Mizen |
Freeze-dried cells make better biocatalysts A biocatalytic cascade using mashed-up cells has overcome extraction and solubility problems associated with using enzymes in chemical syntheses. |
Chemistry World October 8, 2008 James Mitchell Crow |
Clever catalysts promise commercial advantage Smarter catalysts that could help the chemical industry to cut costs and beat ever-more stringent government regulations were showcased at CPhI, the pharmaceutical ingredient trade show, held in Frankfurt, Germany. |
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 February 21, 2007 Tom Westgate |
Complex Organic Molecules Teamed with Iodine Chemists have developed a method for constructing complex halogen-containing organic molecules from simple compounds in a single step. The discovery could pave the way for the synthesis of many potentially useful naturally occurring 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 July 20, 2006 Jessica Ebert |
Golden Touch for Amines Aminobenzene chemicals are used to make anything from dyes to pharmaceuticals, and now scientists have found a way to produce them in a more efficient way using a gold catalyst. |
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 February 10, 2011 James Urquhart |
Molecular motor controls chirality A single molecule catalytic system that uses a light driven molecular motor to dynamically control the molecule's chiral states has been developed by scientists in the Netherlands. |
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. |
Reactive Reports May 2007 David Bradley |
Meeting of Molecular Movie Stars New footage confirms Linus Pauling's theory of chemical bonding proposed half a century ago, and could help explain molecular recognition processes important throughout supramolecular chemistry and molecular biology. |
Chemistry World October 2010 Paul Docherty |
Barekoxide and barekol Like most scientists, organic chemists can often obsess about a problem, endlessly pursuing the perfect yield or enantioselectivity, often leading to tears and broken glassware. |