Process for the preparation of 2-keto-aldonic acids
US4620034A · kind A · utility
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2References
6Claims
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Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H7/027
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of 2-keto-aldonic acids, e.g., 2-keto-gluconic acid, by oxidizing an aldose, e.g. glucose, or aldonic acid in aqueous solution with molecular oxygen. Use is made of a platinum catalyst together with a catalytic amount of lead and/or bismuth and/or a compound thereof. The pH of the solution is in the range of from 4 to 12 and preferably in the range of from 7 to 9. The reaction may be carried out at a temperature in the range of 0.degree. to 200.degree. C. and preferably in the range of from 25.degree. to 80.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.