Process for the preparation of 1,2,4-triazole

Details Process for the preparation of 1,2,4-triazole Process for the preparation of 1,2,4-triazole

1982-06-22

1984-12-25

Rollins, Alton D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D24908

Patent

active

044905394

ABSTRACT:
A process for the preparation of 1,2,4-triazole by reacting hydrazine, formic acid and formamide and/or ammonia in a molar ratio of 1 mole of hydrazine to 1 to 3 moles of formic acid to 1 to 2 moles of formamide and/or ammonia at a temperature of 140.degree. to 220.degree. C. The main advantage of the process of the invention resides in obtaining 1,2,4-triazole with an improved yield and purity.

REFERENCES:
patent: 4267346 (1981-05-01), Kaiser et al.
patent: 4267347 (1981-05-01), Petree et al.
patent: 4283545 (1981-08-01), Knorr et al.
patent: 4390704 (1983-06-01), Beer
Ainsworth et al., J. Am. Chem. Soc., vol. 77, pp. 621-624 (1955).

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