Claims
- 1. A process for preparing 2,4-dihydroxy-3-nitropyridine comprising reacting 2,4-dihydroxynitropyridine with nitric acid.
- 2. The process according to claim 1 wherein an organic acid is added before the reacting with nitric acid.
- 3. The process according to claim 2 wherein the organic acid is acetic acid.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a divisional of U.S. Ser. No. 09/108,622, filed Jul. 1, 1998, U.S. Pat. No. 6,307,054 which is continuation of PCT/US96/20768 filed Dec. 23, 1996, which claims benefit of Provisional Application No. 60/009,492 filed Jan. 2, 1996.
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Provisional Applications (1)
|
Number |
Date |
Country |
|
60/009492 |
Jan 1996 |
US |