Steroid conversion method and products produced thereby
US4252719A · kind A · utility
2Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1978 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Aug 17, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J13/005
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Method for the removal of selected tertiary hydrogen atoms from 5 .alpha.-steroids of the cholestane, androstane and pregnane series by chlorination of 5 .alpha.-steroids esterified with selected iodoaryl substituted esterifying agents which direct a chlorine atom from the chlorinating agent into reactive proximity to the hydrogen atom to be removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.