Intermediates for use in the preparation of vitamin E
US6867307B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | Jul 12, 2001 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Jul 12, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/07
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Intermediate compounds which can be used in the preparation of phytone and Vitamin E, a process for the preparation thereof, and a process for the preparation of phytone and Vitamin E from these intermediate compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.