Synthesis of 3,5-diaminopyrazinoic acid from 3,5-diamino-2,6-dic

Details Synthesis of 3,5-diaminopyrazinoic acid from 3,5-diamino-2,6-dic Synthesis of 3,5-diaminopyrazinoic acid from 3,5-diamino-2,6-dic

1972-03-06

1976-04-06

Gallagher, Richard J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D24146

Patent

active

039488950

ABSTRACT:
An improved method for the preparation of 3,5-diaminopyrazinoic acid (which is useful for the manufacture of diuretics) is described. New compounds obtained in the process include 3,5-diamino-2,6-dicarbamoylpyrazine; 3.5-diamino-6-carbamoylpyrazinoic acid and 3,5-diamino-6-carbamoylpyrazine. The latter compounds are also useful as curing agents for epoxy resins.

REFERENCES:
patent: 3017412 (1962-01-01), Daglish
patent: 3313813 (1967-04-01), Cragoe
patent: 3345372 (1967-10-01), Hanifin
patent: 3544568 (1970-12-01), Cragoe
patent: 3814757 (1974-06-01), Donald

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