Palladium clusters, free and supported on surfaces, and applications in hydrogen storage

2021 ◽  
Author(s):  
Julio A. Alonso ◽  
María J. López
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Chemical Reactions ◽  
Palladium Nanoparticles ◽  
Periodic Table ◽  
Late Transition Metal ◽  
Palladium Clusters ◽  
Transition Metal Element ◽  
Metal Element ◽  
Late Transition

Palladium is a late transition metal element in the 4d row of the periodic table. Palladium nanoparticles show an efficient catalytic activity and selectivity in a number of chemical reactions....

Straightforward synthesis and catalytic applications of rigid N,O-type calixarene ligands

2015 ◽  
Vol 13 (46) ◽  
pp. 11189-11193 ◽  
Author(s):  
Varun Rawat ◽  
Konstantin Press ◽  
Israel Goldberg ◽  
Arkadi Vigalok
Keyword(s):  
Catalytic Activity ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Main Group ◽  
Late Transition Metal ◽  
Organic Transformations ◽  
One Step ◽  
Catalytic Applications ◽  
Late Transition

Here, we report a simple one-step access to new rigid N,O-calixarene ligands which is based on copper-catalized amination at the lower rim. We also present their main group and late transition metal complexes which show superior catalytic activity, in several organic transformations, compared with known metal calixarene complexes.

Hydrosilylation as an efficient tool for polymer synthesis and modification with methacrylates

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 5879-5885 ◽  
Author(s):  
Nuttapol Risangud ◽  
Zhijian Li ◽  
Athina Anastasaki ◽  
Paul Wilson ◽  
Kristian Kempe ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Polymer Synthesis ◽  
Late Transition Metal ◽  
Efficient Tool ◽  
Silicon Compounds ◽  
Late Transition

Hydrosilylation is a well-established reaction for the preparation of organo-silicon compounds, in which vinyl groups react with silanes (Si–H) usually catalysed by late transition metal complexes, most often Pt(ii) complexes.

scholarly journals A gold-catalyzed alkyne-diol cycloisomerization for the synthesis of oxygenated 5,5-spiroketals

2011 ◽  
Vol 7 ◽  
pp. 570-577 ◽  
Author(s):  
Sami F Tlais ◽  
Gregory B Dudley
Keyword(s):  
Transition Metal ◽  
Lewis Acids ◽  
Gold Catalysis ◽  
Late Transition Metal ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Late Transition

A highly efficient synthesis of oxygenated 5,5-spiroketals was performed towards the synthesis of the cephalosporolides. Gold(I) chloride in methanol induced the cycloisomerization of a protected alkyne triol with concomitant deprotection to give a strategically hydroxylated 5,5-spiroketal, despite the potential for regiochemical complications and elimination to furan. Other late transition metal Lewis acids were less effective. The use of methanol as solvent helped suppress the formation of the undesired furan by-product. This study provides yet another example of the advantages of gold catalysis in the activation of alkyne π-systems.

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