On the Preparation of Substituted 4H-1,3,4-Thiadiazolo[2,3-c]-1,2,4-triazin-4-ones and 1,2,4-Triazolo[3,4-b]-1,3,4-thiadiazoles

Journal of Heterocyclic Chemistry

Volumn 34, Issue 4, 1997, Pages 1351-1354

  Coppo, Frank T ^a   Fawzi, Maged M ^a  

^a DUPONT COMPANY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 1542675207     PISSN: 0022152X     EISSN: None     Source Type: Journal    
DOI: 10.1002/jhet.5570340443     Document Type: Article

References (10)

1. E. Beska, L. Kuruc,V. Konecny and S.Varkonda, Czech Patent, CS 226,916, April 16 (1984); Chem. Abstr., 106, 18626a (1987).
2. E. Beska, L. Kuruc,V. Konecny and S.Varkonda, Czech Patent, CS 226,916, April 16 (1984); Chem. Abstr., 106, 18626a (1987).
3. W. Sirrenberg, L. Eue and R. Schmidt, German Offen. DE 2613434, October 13 (1977); Chem. Abstr., 88, 22986v (1978).
4. W. Sirrenberg, L. Eue and R. Schmidt, German Offen. DE 2613434, October 13 (1977); Chem. Abstr., 88, 22986v (1978).
5. P. Molina, M. Alajarin and R. Benzal, Synthesis, 9, 759 (1983).
6. R. L. Frank and P. V. Smith, Org. Synth., Coll Vol II, E. C. Horning, ed, John Wiley and Sons, New York, 1955, p 735.
7. [5a] A. Dornow, H. Menzel and P. Marx, Chem. Ber., 97, 2173 (1964);
8. [b] K. Westphal, W. Meiser, L. Fue and H. Hack, U.S. Patent 3,671,523; Issued June 20, 1972;
9. [c] The 4-amino-6-tert-butyl-3-(methylthio)-l,2,4-triazin-5(4H)-one (I) used in this project is the known herbicide metribuzin, sold by DuPont as Lexone® and by Bayer as Sencor®.
10. H. Golgolab, I. Lalezari and L. Hosseini-Gohari, J. Heterocyclic Chem., 10, 387 (1973).