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Miniaturization is the watchword of progress. Nanoscience - building structures on the scale of a few atoms - has long been at the forefront of chemistry for some time now. Recently, researchers at The University of Tokyo developed the new strategy to construct the subnanosized metal aggregates, bui more
Adding olefin enables efficient solvent-free cross-coupling reactions, leading to environmentally friendly syntheses of a wide range of organic materials. A cross coupling reaction is typically performed in an organic solvent and leads to the production of a large amount of solvent waste, which is o more
A research group at the Center for Multidimensional Carbon Materials, within the Institute for Basic Science (IBS), have published a new method to convert inexpensive polycrystalline metal foils to single crystals with superior properties. It is expected that these materials will find many uses in s more
Diamonds might purportedly be ‘a girl’s best friend’, but they’re also quite interesting from a chemical perspective. You could be forgiven for thinking that there’s not a whole lot to them; after all, they’re simply one of the possible forms of carbon, formed at high pressure beneath the Earth’s su more
There are an isolated few graphics online that look at elements involved in the manufacture of a smartphone – for example, this ‘Periodic Table of iPhones’ – but there’s actually remarkably little easily accessible information out there that details the specific compounds used for specific purposes more
This graphic looks at some general properties of the transition metals – I had a little less space to work with than with the previous graphics, on account of the large number of elements that the transition metals encompass, but hopefully what’s included is still of use. more
A stereocontrolled synthesis of aryl-C-glycosides was achieved using glycals and aryldiazonium salts in the presence of palladium acetate. A wide range of glycals including D-glucal, D-galactal, L-rhamanal, D-xylal and D-ribal underwent C-arylation at the anomeric carbon in the presence of different more
A simple palladium-catalyzed selective synthesis of structurally diverse 3,4-dihydroquinazolines from electron-rich arylamines, electron-poor arylamines and glyoxalates has been developed under mild conditions. This reaction is carried out in a tandem manner constituted by the condensation of arylam more
The palladium-catalyzed diastereoselective [3 + 2] cycloaddition reaction of vinylcyclopropanes with sulfamate-derived cyclic imines worked efficiently under mild reaction conditions, providing 2,3-dihydrobenzo[e]pyrrolo[1,2-c][1,2,3]oxathiazine 5,5-dioxide derivatives in good to excellent yields. more
Optical active substances made from chiral catalysis form the basis of many drugs. Expensive precious-metal catalysts are required for the chemical production, which due to their thermal instability decompose at high temperatures and can therefore only be used once. The innovative process of DexLeChem GmbH makes it possible for the first time to use these precious-metal catalysts made from rhodium, ruthenium or iridium more than once, without modifying them. At the same time, reaction occurs in aqueous solutions instead of mineral-oil-based solvents, which increases the sustainability of the process. This is a milestone in catalysis and a real opportunity for the pharmaceutical industry. more
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