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. 25, 1989
Filed:
Aug. 27, 1985
Applicant:
Inventor:
Maria L Miller, Manchester, MO (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546250 ; 546310 ;
Abstract
Disclosed herein is a novel process for the preparation of 4-amino-3,5-pyridinedicarboxylate derivatives by (a) reaction of an acetonediester with a primary amine to form an enamine, (b) reaction with a carboxylic acid anhydride or halide to form a 2-alkylcarbonyl-3-amino-2-pentenedicarboxylate, and (c) reaction with a halogenated alkylnitrile to form the pyridinedicarboxylate product. The product is useful as a herbicide or an intermediate in the formation of a herbicide.
Miller, Maria. (1989). Process for preparation of substituted pyridines (U.S. Patent No. 4824954). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4824954
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile