Process for the manufacture of substituted 3-hydroxy-...

Details Process for the manufacture of substituted 3-hydroxy-... Process for the manufacture of substituted 3-hydroxy-...

C - Chemistry, Metallurgy

07

D

260/313.3

C07D 249/12 (2006.01)

Patent

CA 1183543

ABSTRACT OF THE DISCLOSURE Manufacture of 3-hydroxy-1,2,4-triazoles by reacting hydrazines with urea or alkali or ammonium cyanates and cyclization of the corresponding semicarbazides by means of formic acid in the presence of an inorganic acid. The triazoles arc known intermediates for insecticides.

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