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. 11, 1978
Filed:
Jun. 23, 1976
Applicant:
Inventor:
Hans-Juergen Quadbeck-Seeger, Bad Durkheim, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen am Rhein, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602949 ;
Abstract
5-Cyanopyrid-6-ones are manufactured by reacting haloacetic acid esters with nitrogen compounds, then reacting the mixture with alkali metal cyanides, and finally reacting it with dicarbonyl compounds. The products are starting materials for the manufacture of dyes, assistants, pharmaceuticals, vitamin B 6, crop protection agents and aminoacids.