Activation of a Diels-Alder reaction of a sterol 5,7-diene
US6399796B2 · kind B2 · utility
3Cited by
8References
24Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J9/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An improved process and composition are disclosed for isolation of steroids containing a 5,7-diene functionality from a sterol mixture that comprises formation of a Diels-Alder reaction product of the ster-5,7-dienol in the presence of at least a catalytic amount of an ethylenically unsaturated C12-C24 fatty carboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.