Process for the preparation of 3-hydroxy-3-methylglutaric acid
US4640750A · kind A · utility
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3Claims
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Key dates
| Filing date | Nov 26, 1985 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Nov 26, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
3-Hydroxy-3-methylglutaric acid is prepared by electrolysis of an aqueous alkaline solution of 3-methyl-1,3,5-pentanetriol using anodes coated with nickel oxide/hydroxide NiO(OH) and conventional cathodes, followed by acidification of the alkaline solution and conventional working up. The yields achieved by this are always between about 70 and 85% of theory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.