Palladium

Companies Palladium

abcr GmbH, Germany

abcr. Gute Chemie. Your competent partner for the procurement of chemicals for science, research and industry for over 25 years. Versatile range in customized units from grams to tonnes and, therefore, ideally adapted to your processes. More than 250,000 products quickly and simply available in th more

Thermo Fisher (Kandel) GmbH, Germany

Alfa Aesar, now part of Thermo Fisher Scientific is a leading manufacturer and supplier of chemicals, metals, and life science products for research and development. For more than 50 years, scientists have relied on Alfa Aesar to supply high purity raw materials for a variety of research and dev more

Heraeus Deutschland GmbH & Co. KG, Germany

A globally leading technology group, Heraeus is headquartered in Hanau, Germany. Founded in 1851, it is a family-owned portfolio company which traces its roots back to a pharmacy opened by the family in 1660. Today, Heraeus combines businesses in the environmental, energy, electronics, health, mobil more

News Palladium

• New technique builds super-hard metals from nanoparticles
  

  Metallurgists have all kinds of ways to make a chunk of metal harder. They can bend it, twist it, run it between two rollers or pound it with a hammer. These methods work by breaking up the metal's grain structure -- the microscopic crystalline domains that form a bulk piece of metal. Smaller grains more

• Chemists used crab shells to improve palladium catalysts
  

  Chemists from RUDN University synthesized soluble biopolymers based on chitin from crab shells. Together with palladium, they form effective catalysts for organic reactions, and their nanoparticles can be re-used over ten times. Palladium-based catalysts are used to speed up cross-coupling reactions more

• Palladium Catalysts Can Do Its
  

  Palladium catalysts help synthesize key chemicals for many industries. However, direct reaction of two basic reagents, aryl halides and alkyllithium compounds, remains a challenge. Now, a team of scientists have found that a catalyst containing YPhos-type ligands can mediate this reaction even at ro more

Videos Palladium

Palladium

For our updated Palladium video, we are mining the Royal Society archives for the story of its discovery - a tale of money, an asteroid and stolen samples? more

Infographics Palladium

The Chemistry of Diamond Rings

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

The Chemical Elements of a Smartphone

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

Transition Metals

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

Publications Palladium

• Palladium catalyzed stereocontrolled synthesis of C-aryl glycosides using glycals and arenediazonium salts at room temperature

  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

• Palladium-catalyzed selective synthesis of 3,4-dihydroquinazolines from electron-rich arylamines, electron-poor arylamines and glyoxalates

  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

• Pd-Catalyzed diastereoselective [3 + 2] cycloaddition of vinylcyclopropanes with sulfamate-derived cyclic imines

  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

q&more articles Palladium

• Water instead of mineral oil
  

  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