Process for the preparation of intermediates useful for making h

Details Process for the preparation of intermediates useful for making h Process for the preparation of intermediates useful for making h

1986-08-08

1988-09-20

Hollrah, Glennon H.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548266, 548269, 548262, C07D24914

Patent

active

047727209

ABSTRACT:
Sulfonamides derived from substituted 2-amino-1,2,4-triazolo[1,5-a]pyrimidines are prepared by reacting a desired sulfonamide with dimethyl N-cyanodithioiminocarbonate in the presence of a base followed by reaction with an excess of hydrazine and then a 1,3-dicarbonyl compound.
The resulting products have a variety of herbicidal uses.

REFERENCES:
patent: 4421550 (1983-12-01), Selby et al.
Liexbys Annalin 467, p. 247-249 (1928) Uber Triazol-Sulfoharnstoffe.
Potts, "The Chemistry of 1,2,4-Triazoles", p. 94 Chem. Reviews 61 (2) (1961).
Joshi et al., CA:75 (19): 1182585 (1971), "Potential Organofluorine Oral Hypoglycemic, etc.".
Paul et al., CA 70 (11):47368n (1969), "Search for Oral Hypoglycemic Agents, etc.".
Elderfield, Hetercyclic Cmpds., vol. 7, pp. 438-439 Wiley and Sons, N.Y. 1961.

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