5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)--thione compounds

Details 5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)--thione compounds 5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)--thione compounds

1993-11-05

1996-01-30

Daus, Donald G.

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

Organic compounds

Pteroyl per se or having -c-, wherein x is chalcogen, bonded...

C07D48704

Patent

active

054881099

ABSTRACT:
2-Chlorosulfonyl-5-alkoxy[1,2,4]triazolo-[1,5-c]pyrimidine compounds, such as 2-chlorosulfonyl-5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidine, that are useful for the preparation of 5-alkoxy[1,2,4]triazolo [1,5-c]pyrimidine-2-sulfonamide herbicides, were prepared in an improved manner from 5-alkoxy[1,2,4]triazolo [1,5-c]pyrimidine-2(3H)-thione compounds, such as 5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)-thione, by oxidation with hydrogen peroxide to obtain novel 2,2'-dithiobis(5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine) compounds, such as 2,2'-dithiobis (5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidine), and subsequent chloroxidation of these intermediate compounds.

REFERENCES:
patent: 4528288 (1985-07-01), Wade
patent: 5008396 (1991-04-01), Krauss
patent: 5163995 (1992-11-01), Van Heertum et al.
patent: 5177206 (1993-01-01), Johnson et al.
patent: 5217521 (1993-06-01), Durr
Merck Index, 10th Edition (1983) p. 400.
Brown et al., Australian Journal of Chemistry, 31, 2505-2515 (1978).
Brown et al., Australian Journal of Chemistry, 32, 2713-2726, (1979).
Broadbent et al., J. Chem. Soc., 1965, 3369-3372.

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