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:
Sep. 02, 1997
Filed:
Aug. 15, 1996
Applicant:
Inventors:
Stefan Penninger, Pulheim, DE;
Peter Heitkamper, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564305 ; 564437 ;
Abstract
The present invention relates to an improved process for the preparation of toluidines. This process comprises the reductive deamination of 2,3-diaminotoluenes and/or 3,4-diaminotoluenes in the presence of one or more iron oxide catalyst.