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1. WO1996004255 - PRODUCTION OF 1,2,3-TRIAZOLES BY CYCLOCONDENSATION OF HYDRAZIDES WITH GLYOXAL AND AMINES

Publication Number WO/1996/004255
Publication Date 15.02.1996
International Application No. PCT/IB1995/000569
International Filing Date 18.07.1995
Chapter 2 Demand Filed 26.02.1996
IPC
C07D 249/04 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
249Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
02not condensed with other rings
041,2,3-Triazoles; Hydrogenated 1,2,3-triazoles
CPC
C07D 249/04
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
249Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
02not condensed with other rings
041,2,3-Triazoles; Hydrogenated 1,2,3-triazoles
Applicants
  • SYNPHAR LABORATORIES, INC. [CA/CA]; 4290-91A Street Edmonton, Alberta T6E 5V2, CA
Inventors
  • SINGH, Inder, Pal; CA
  • SPEVAK, Paul; CA
  • PALAK, Bhupinder; CA
  • AMEDJO, Samuel; CA
  • MICETICH, Ronald, G.; CA
Priority Data
08/282,02729.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PRODUCTION OF 1,2,3-TRIAZOLES BY CYCLOCONDENSATION OF HYDRAZIDES WITH GLYOXAL AND AMINES
(FR) PRODUCTION DE 1,2,3-TRIAZOLES PAR CYCLOCONDENSATION D'HYDRAZIDES AVEC DU GLYOXAL ET DES AMINES
Abstract
(EN)
1H-1,2,3-triazole and its N1-aryl or N1-alkyl derivatives are obtained by reaction of a hydrazide RNHNH2, wherein R is acyl or sulfonyl, with glyoxal followed by treatment of the intermediate hydrazone RNHN=CHCHO, which does not require isolation, with ammonia or an appropriate amine.
(FR)
Du 1H-1,2,3-triazole et ses dérivés N1-aryle ou N1-alkyle sont obtenus par réaction d'un hydrazide RNHNH2, où R représente acyle ou sulfonyle, avec du glyoxal, ladite réaction étant suivie du traitement de l'hydrazone intermédiaire RNHN=CHCHO, qui ne nécessite pas une isolation, avec de l'ammoniac ou une amine appropriée.
Also published as
Latest bibliographic data on file with the International Bureau