Process for the preparation of 1,2,4-triazine-3,5-diones

Details Process for the preparation of 1,2,4-triazine-3,5-diones Process for the preparation of 1,2,4-triazine-3,5-diones

1995-07-28

1996-06-25

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D253075

Patent

active

055301290

ABSTRACT:
The invention relates to a novel process for the preparation of 1,2,4-triazine-3,5-diones by decarboxylation of corresponding 6-carboxy-1,2,4-triazine-3,5-diones, characterized in that it is carried out in aprotic organic solvents.

REFERENCES:
patent: 3883528 (1975-05-01), Mylari
patent: 3905971 (1975-09-01), Miller
patent: 4198407 (1980-04-01), Rosner et al.
F. Yoneda, et al., J. Heterocyclic Chem., vol. 17, pp. 1365-1368, (1980).
Abstract of EP 33 041, (Aug. 5, 1981).

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