Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-05-07
1991-09-24
Shen, Cecilia
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540603, 544132, 544366, 546210, 546276, 5482654, C07D40104, C07D40112, C07D40302, C07D41302
Patent
active
050515179
ABSTRACT:
3-amino-5-amino-carbonyl-1,2,4-triazoles of the formula ##STR1## are obtained in good yields and in high purity when a chloroformadine hydrochloride of the formula ##STR2## are reacted with an oxamohydrazide of the formula ##STR3## This reaction can be carried out in the presence of an acid acceptor and in the presence of a diluent at temperatures between 0.degree. C. and 150.degree. C.
REFERENCES:
patent: 4578479 (1986-03-01), Fukui et al.
patent: 5021081 (1991-06-01), Findeisen
Chemical Abstracts, vol. 63, No. 10, Nov. 8, 1965, Paragraph 13243f-13244b, Columbus, Ohio, U.S: G. E. Cipens et al.:"Derivatives of 1,2,4-triazole-5-carboxylic acid", & Latvijas PSR Zinatnu Akad. Vestis, Kim. Ser. 1965 (2), 294-298.
Bulletin De La Societe Chimique De France, No. 4, Apr. 1970, pp. 1590-1599, Paris, FR; M. Pesson et al.: "Recherches sur les derives du triazole-1,2,4. V.-Amides N-dialkyles d'acides triazol-1,2,4 yl-5 carboxyliques".
Findeisen et al., Chem. Abst. 112-139036r (1990).
Findeisen Kurt
Lindig Markus
Bayer Aktiengesellschaft
Shen Cecilia
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