Process for preparing 1-amino-1,2,3-triazole

Details Process for preparing 1-amino-1,2,3-triazole Process for preparing 1-amino-1,2,3-triazole

C - Chemistry, Metallurgy

07

D

C07D 249/04 (2006.01)

Patent

CA 2175246

This invention is to provide a process for preparing 1- amino-1,2,3-triazole represented by formula (III): Image (III) comprising cyclizing glyoxal bishydrazone represented by formula (I): Image (I) by reaction with an aqueous hydrogen peroxide solution in the presence of a catalytic amount of a transition metal oxide represented by formula (II): MmOn (II) wherein M represents a transition metal atom; and m and n, which may be the same or different, each represent an integer of 1 to 5.

Procédé fiable et simple et économique de production d'1-amino-1,2,3-triazole de formule (III) consistant à cycliser de la glyoxal bihydrazone de formule (I) en la faisant réagir avec une solution de peroxyde d'hydrogène ou de bioxyde de manganèse en présence d'une quantité à pouvoir catalytique d'un oxyde d'un métal de transition de formule générale (II) où M représente un atome de métal de transition, et m et n chacun, un entier compris entre 1 et 5.

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