Beta-keto-alcohols and the process for the manufacture thereof
US5648550A · kind A · utility
1Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Dec 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel process for the manufacture of .beta.-keto alcohols from aldehydes comprising reacting a conjugated polyene aldehyde under basic conditions with a cyclocarbonate or derivative thereof. Certain carotenoid products of this process are novel compounds and are also an object of the present invention. The products, which for the most part belong to the carotenoid field, find corresponding use, for example, as colorants or pigments for foodstuffs, egg yolk, integuments and/or subcutaneous fat of poultry and flesh and/or integuments of fish and crustaceans.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.