Skip to Content
Find More Like This
Return to Search

Catalyst system comprising a first catalyst system tethered to a supported catalyst

United States Patent

5,789,333
August 4, 1998
View the Complete Patent at the US Patent & Trademark Office
Ames Laboratory - Visit the Iowa State University Research Foundation - Office of Intellectual Property & Technology Transfer Website
The present invention provides new catalyst formats which comprise a supported catalyst tethered to a second and different catalyst by a suitable tethering ligand. A preferred system comprises a heterogeneous supported metal catalyst tethered to a homogeneous catalyst. This combination of homogeneous and heterogeneous catalysts has a sufficient lifetime and unusually high catalytic activity in arene hydrogenations, and potentially many other reactions as well, including, but not limited to hydroformylation, hydrosilation, olefin oxidation, isomerization, hydrocyanation, olefin metathesis, olefin polymerization, carbonylation, enantioselective catalysis and photoduplication. These catalysts are easily separated from the products, and can be reused repeatedly, making these systems very economical.
Angelici; Robert J. (Ames, IA), Gao; Hanrong (Ames, IA)
Iowa State University Research Foundation, Inc. (Ames, IA)
08/ 811,426
March 5, 1997
STATEMENT OF GOVERNMENT RIGHTS This invention was made with Government support under United States Department of Energy Contract No. W-7405-ENG-82. The Government has certain rights in this invention.