Do early and late transition metal noble gas complexes react by different mechanisms? A room temperature time-resolved infrared study of (η5-C5R5)Rh(CO)2 (R = H or Me) in supercritical noble gas solution at room temperature

2003 ◽  
pp. 1773-1778 ◽  
Author(s):  
Omar S. Jina ◽  
Xue Z. Sun ◽  
Michael W. George
Keyword(s):  
Transition Metal ◽  
Room Temperature ◽  
Noble Gas ◽  
Late Transition Metal ◽  
Infrared Study ◽  
Time Resolved ◽  
Late Transition ◽  
Temperature Time

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.

Sign in / Sign up

Export Citation Format

Share Document