Process for the production of 1,2,4-triazole derivatives

Details Process for the production of 1,2,4-triazole derivatives Process for the production of 1,2,4-triazole derivatives

1975-06-03

1976-11-16

Rollins, Alton D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260308C, 260583B, C07D24912

Patent

active

039923983

ABSTRACT:
Process for the production of 1-alkyl-3-hydroxy-5-chloro-1,2,4-triazoles wherein an alkylhydrazine is reacted in an inert solvent in the presence of an acid binding agent with cyanogen chloride to 1-alkyl-1-cyanohydrazine which is subsequently cyclized with phosgene.

REFERENCES:
patent: 3701784 (1972-10-01), Seidel et al.
patent: 3755349 (1973-08-01), Timmler et al.
patent: 3862125 (1975-01-01), Hoffmann et al.
Elderfield, Heterocyclic Compounds, vol. 8, (New York, 1961), pp. 425-426.
Schulze, J. Prakt. Chem., Vierte Reihe, Band 26, pp. 268-271.
Jensen et al., Acta. Chem. Scand., vol. 22, pp. 1-50, (1968).

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