Process for racemization of allethrolone
US4111993A · kind A · utility
1Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1977 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | May 9, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/707
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel process for the preparation of racemic allethrolone of the (R,S) configuration comprising heating optically active allethrolone of the (R) configuration or of the (S) configuration or a mixture of the (R) and (S) configurations in non-equimolecular proportions with formic acid to form the formate of racemic allethrolone of (R,S) configuration and hydrolyzing the latter in the presence of an acid or base to obtain racemic (R,S) allethrolone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.