Method for producing 5-isopropyluracil
US5914399A · kind A · utility
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5Claims
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Key dates
| Filing date | Oct 20, 1998 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Oct 20, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing 5-isopropyluracil at a high yield in a short time, wherein N-(2-cyano-3-methylbutanoyl)urea is reduced in a 10-15% aqueous sulfuric acid solution in the presence of palladium carbon at 30-45.degree. C., heated for ring closure reaction and added to a 50-70% aqueous sulfuric acid solution to give 5-isopropyluracil having a high purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.