Reactions and synthesis – Page 20
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Research
Counterintuitive catalyst gives purer products when used in less enantiopure form
Unusual example of ‘hyperpositive’ nonlinear effect is a first for asymmetric catalysis
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Mechanical protecting group shields molecules from stress and strain
Catenane makes force-activated molecules more resistant mechanical bond breaking
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Structure-based AI tool can predict wide range of very different reactions
Molecular properties, enantioselectivities, yields and relative conversion can all be modelled by the same program
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Automated radial synthesis could usher in era of chemistry ‘server farms’
System to streamline small molecule production could bring state-of-the-art chemistry to many more teams
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Early warning signals in chemical system akin to those of stock markets and ecosystems
Prior to collapse, critical slowing down observed in oscillating chemical system
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Rotaxane–gold complex is in good shape for catalysis
A new type of catalyst containing a mechanically planar chiral rotaxane shows promise for organic synthesis
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Platinum makes PVC production greener and cheaper
A new single-atom catalyst could replace toxic mercury in the manufacture of vinyl chloride
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Regiodivergent synthesis creates various medium-sized rings from same reagents
Temperature and solvent direct reaction output
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Prozac and methamphetamine likely responsible for toxins in tap water
Antidepressant and stimulant amine drugs are potential precursors for some of the most toxic compounds formed during water disinfection
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First colour-changing crystal glow could make for safer banknotes
New type of blue-to-orange luminescence discovered in organic material
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Light-harvesting clusters and titanium dioxide cooperate to fix nitrogen
Atomically precise metal clusters continue to gather momentum by catalysing the production of ammonia
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Durable catalyst could enable large scale conversion of carbon dioxide to syngas
Nanocatalysts on crystalline supports show remarkable stability producing hydrogen and carbon monoxide
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Four-leaf clover molecule with metal centre is first in a new family of aromatics
First molecule made of four fused aromatic rings around an osmium atom
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Chemists complete synthesis of molecule ‘at the limits of complexity’
Synthesis of canataxpropellane paves the way to biological studies
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Aromaticity lends stability to carbon-only catenanes
Catenanes of newly discovered C18 rings are theoretically possible thanks to the kinetic quirks of aromaticity
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Catalyst rapidly turns carbon dioxide into simple chemicals breaking activity record
Ionomer coating improves gas transport to electrode surface
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Nickel catalyst switches on double stereochemistry in reaction between racemic alkanes
First-of-its-kind reaction creates stereocentres by stitching together racemic nucleophiles and electrophiles
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Cobalt makes a comeback in hydroformylation catalysis
Cationic cobalt catalyst could drive down costs in widely-used process
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Sugars designed to disrupt bacterial cell wall biosynthesis
Rare monosaccharides explore concept for new narrow-spectrum antibiotics
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Computer says no to membrane-bound life on Titan
Scientists quash inside–out cell membrane theory but don’t completely rule out possibility of life on cryogenic liquid hydrocarbon worlds