Process for producing vitamin A ester
US6727381B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jan 3, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for producing all trans-vitamin A ester (I). According to the present invention, vitamin A ester (I) can simply be synthesized in good yields and high purity by the reaction of phosphonate compound (IV) with aldehyde (II) in an organic solvent in the presence of a base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.