Preparation of tocopherols
US6262279A · kind A · utility
3Cited by
3References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Jul 6, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides methods for producing tocopherol compounds of the Vitamin E family by reduction of various 4-chromanone trienol materials. In preferred embodiments the invention provides methods of preparing and hydrogenating 4-chromanone trienols to provide gamma-tocopherol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.