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:
Dec. 26, 1995
Filed:
Jul. 29, 1994
Applicant:
Inventors:
Inder P Singh, Edmonton, CA;
Paul Spevak, Edmonton, CA;
Bhupinder Palak, Edmonton, CA;
Samuel Amedjo, Edmonton, CA;
Ronald J Micetich, Sher. Pk., CA;
Assignee:
SynPhar Laboratories, Inc., Edmonton, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548255 ;
Abstract
A high purity triazole is obtained by the reaction of a hydrazide of the general formula II and glyoxal followed by the treatment of the intermediate of general formula IV with ammonia. The total process is done in one pot and does not require the isolation of the intermediate IV. The triazole (I) is isolated by distillation. Synthesis of various N.sub.1 -substituted triazoles is also described following the same procedure.