Process for the production of 2-(methylthio)-disodium barbiturate
US5250689A · kind A · utility
2Cited by
1References
18Claims
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Inventors
Key dates
| Filing date | Aug 27, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | Aug 27, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/68
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production or 2-(methylthio)-disodium barbiturate. Thiourea, malonic acid dimethyl ester and sodium methanolate are reacted to disodium thiobarbiturate. The disodium thiobarbiturate then is reacted with methyl bromide, optionally in the presence of a base, to the end product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.