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:
Apr. 14, 1981
Filed:
Jan. 17, 1980
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560 24 ; 252438 ; 452441 ; 549 69 ; 560 25 ; 560 27 ; 560 28 ; 560 30 ; 560 31 ; 560 32 ; 560 33 ; 560115 ; 560132 ; 560157 ; 560158 ; 560-9 ; 560 13 ;
Abstract
The present invention relates to an improved process for the production of urethanes (carbamic acid esters) by the reaction of organic nitro compounds with carbon monoxide and organic compounds containing at least one hydroxy group in the presence of palladium and/or palladium compounds and a cocatalyst which consists of a mixture of one or more iron oxides and/or iron hydroxides and activating chloride-containing additives.