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:
Jun. 26, 1984
Filed:
Jun. 28, 1982
Applicant:
Inventors:
Gerd-Michael Petruck, Erkrath, DE;
Paul R Wambach, deceased, late of Leverkusen, DE;
Adolf Wissner, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568937 ;
Abstract
A process for the preparation of 2-chlor-4-nitrotoluene is disclosed by chlorination of 4-nitrotoluene in the presence of iodine. The resultant 2-chloro-4-nitrotoluene is a valuable intermediate for the preparation of herbicides.