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:
Sep. 24, 1991
Filed:
May. 07, 1990
Applicant:
Inventors:
Kurt Findeisen, Odenthal, DE;
Markus Lindig, Hilden, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
5482656 ; 540603 ; 544132 ; 544366 ; 546210 ; 546276 ; 5482654 ;
Abstract
3-amino-5-amino-carbonyl-1,2,4-triazoles of the formula ##STR1## are obtained in good yields and in high purity when a chloroformadine hydrochloride of the formula ##STR2## are reacted with an oxamohydrazide of the formula ##STR3## This reaction can be carried out in the presence of an acid acceptor and in the presence of a diluent at temperatures between 0.degree. C. and 150.degree. C.