Method for producing 3-(2,2,2-trimethyl-hydrazinium) propionate dihydrate
US8153842B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 4, 2006 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Mar 6, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing 3-(2,2,2-trimethylhydrazinium)propionate dihydrate by saponification of salts of 3-(2,2,2-trimethylhydrazinium)propionate esters with subsequent purification step using saturation with carbon dioxide or sulphur dioxide in alcoholic solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.