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:
Jan. 13, 1998
Filed:
Nov. 27, 1996
Applicant:
Inventors:
Gunther Beck, Leverkusen, DE;
Helmut Heitzer, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
546315 ; 546250 ; 546286 ; 546287 ; 546314 ;
Abstract
The reaction of cyanoolefins, aminocarbonylolefins or hydroxyiminoolefins with a Vilsmeier reagent leads to 2-halogenopyridines which bear aldehyde groups in the 3 and/or 5 position. These pyridinealdehydes are valuable intermediates for the preparation of pharmaceuticals and crop protection agents.
Beck, Gunther. (1998). Process for the preparation of 2-halogenopyridinealdehydes and novel (U.S. Patent No. 5708180). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5708180
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile