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:
Mar. 30, 1993
Filed:
May. 13, 1991
Applicant:
Inventor:
Andreas Gunther, Cologne, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546345 ; 546346 ; 544334 ; 544242 ;
Abstract
In the chlorination of the side chain of an alkylated nitrogen heteroaromatic such as pyridine or pyrimidine by reaction with elemental chlorine, the reaction is effected in acetronitrile as solvent.
Gunther, Andreas. (1993). Side-chain chlorination of alkylated nitrogen heteroaromatics (U.S. Patent No. 5198549). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5198549
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile