Process for producing 1,2,4-triazol-5-one using organic sulfonic

Details Process for producing 1,2,4-triazol-5-one using organic sulfonic Process for producing 1,2,4-triazol-5-one using organic sulfonic

1990-07-02

1992-05-12

Morris, Patricia L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D24912

Patent

active

051129833

ABSTRACT:
A process for producing 1,2,4-triazol-5-one reacts a semicarbazide compound with a formic acid compound in the presence of a catalytic amount of a catalyst. The catalyst is selected from the group consisting of an organic sulfonic acid and a sulfonic acid-containing polymer or co-polymer, and mixtures thereof. The novel process of the present invention produces 1,2,4-triazol-5-one having significantly lower concentrations of chloride ion which are advantageous, for example, in the production of 3-nitro-1,2,4-triazol-5-one as an explosive used in castable explosive compositions. The organic sulfonic acid compound catalyst can be recovered and reused.

REFERENCES:
patent: 2763661 (1956-09-01), Grundmann et al.
patent: 3041317 (1962-06-01), Gibbs et al.
patent: 3282875 (1966-11-01), Connolly et al.
patent: 3560568 (1971-02-01), Resnick
patent: 3718627 (1973-02-01), Grott
patent: 4467098 (1984-08-01), Koch et al.
patent: 4482739 (1984-11-01), Rothgery
patent: 4927940 (1990-05-01), Boudakian et al.
C. Runti et al. Chem. Abstracts 54; 22601-2, Ann. Chim. (Rome) 49, 1649-67 (1959), "Reactions Between Organic Nitrogen Compounds and Ethyl Orthoformates I. Hydrazides and Derivatives".
Chemische Berichte, vol. 98-II, "Synthesen and Reaktionen von 4-Amino-1.2.4-Triazolonen-(5)", pp. 3025-3033, 1965 C. F. Kroger et al.
Chemische Berichte, vol. 98-II, "Die Umsetzung Alkylsubstituierter Semicarbazide Mit Orthoameisensaure-triathylester" pp. 3034-3039, 1965.
H. Gehlen et al. Chem. Abstract, 62; 14437: Ann Chem. 682, pp. 123-135 (1965) "1.2.4-Triazol-5-ones, V. Effect of Substituents on the Rate of Hydrolysis in Half-Concentrated Sulfuric Acid".
G. Chipen et al. Khim. Geterotsikl. Soedin., Akad. Nauk Latv. SSR, 1966 (1) pp. 110-116 (Translated) "5-1,2,4-Triazolin-3-one and Its Nitro and Amino Derivatives".
Chemische Berichte, vol. 100-II, "Die Bromierung von 1,2,4-Triazolen", pp. 2250-2257 (1967).
Dobosz. Chem. Abst. 100; 34468: Univ. Mariae Curie-Sklodowska, Sect. AA: Chem 1 (Publ. 1982), 34, pp. 163-168 (Polish), "Triformylaminomethane. III. Reaction With Thiosemicarbazide, Semicarbazide and Aminoguanidine".
Chemical Reviews, "Formylating Agents", (G. A. Olah et al) American Chemical Society, vol. 87, No. 4, Aug. 1987, pp. 671-686.
Pennwalt Corp. Phila. Pa. No. S-107B "Methane Sulfonic Acid (MSA), Properties Reactions and Applications, publication", pp. 1-11.

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