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:
Jul. 15, 1986
Filed:
Sep. 16, 1983
Applicant:
Inventors:
John H Grate, Palo Alto, CA (US);
David R Hamm, Mountain View, CA (US);
Donald H Valentine, Santa Clara, CA (US);
Assignees:
Catalytica Associates, Mountain View, CA (US);
Haldor Topsoe A/S, Copenhagen, DK;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 25 ; 560 24 ; 560 27 ; 560 28 ; 560 29 ; 560 30 ; 560 32 ; 560115 ; 560157 ; 560158 ; 560163 ; 560164 ;
Abstract
A process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a halide-free ruthenium catalyst is disclosed. In the process of this invention, the rate of conversion and selectivity to urethane is increased by providing a primary amine in the reaction solution.