The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1976
Filed:
Jun. 30, 1975
Applicant:
Inventors:
Thomas Herskovitz, Wilmington, DE (US);
George William Parshall, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ;
U.S. Cl.
CPC ...
2604 / ; 2524 / ; 2524 / ; 2524 / ; 2524 / ; 2524 / ; 2604 / ; 2606 / ; 2606 / ;
Abstract
Complexes of certain transition metals and phosphine or arsine ligands with carbon dioxide, e.g., (carbon dioxide)bis[1,2-ethanediyl-bis[dimethylphosphine]-P,P']iridium(1+), chloride, useful as catalysts in hydrogenation and isomerization, e.g., of 1-butene, are prepared by direct addition of pressurized CO.sub.2 to the appropriate metal complex precursor, e.g.,