FR2151450A5 - Gona-4,9-dien-3-ones prepn - by treating 3-hydroxy, 3-alkoxy or 3-acyloxygona-1,3,5(10)-trienes with antimony pentafluori - Google Patents
Gona-4,9-dien-3-ones prepn - by treating 3-hydroxy, 3-alkoxy or 3-acyloxygona-1,3,5(10)-trienes with antimony pentafluoriInfo
- Publication number
- FR2151450A5 FR2151450A5 FR7127672A FR7127672A FR2151450A5 FR 2151450 A5 FR2151450 A5 FR 2151450A5 FR 7127672 A FR7127672 A FR 7127672A FR 7127672 A FR7127672 A FR 7127672A FR 2151450 A5 FR2151450 A5 FR 2151450A5
- Authority
- FR
- France
- Prior art keywords
- gona
- trienes
- prepn
- dien
- treating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Steroid Compounds (AREA)
Abstract
Prepn. of gona-4,9-dien-3,17-diones of formula (I) (where R is 1-4C alkyl) by treating a gona-1,3,5(10)-trien-17-one of formula (II) (where X is H, 1-6C alkyl or is not >16C acyl) with HF/SbF5. Cpds (I) are inters for active steroids e.g. 4,9,11-trienes. They are prepd. simply in good yield by a single-stage process. The preferred molar ratio of SbF5/HF is 5 to 20% to give optimum yields and speed of reaction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7127672A FR2151450A5 (en) | 1971-07-28 | 1971-07-28 | Gona-4,9-dien-3-ones prepn - by treating 3-hydroxy, 3-alkoxy or 3-acyloxygona-1,3,5(10)-trienes with antimony pentafluori |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7127672A FR2151450A5 (en) | 1971-07-28 | 1971-07-28 | Gona-4,9-dien-3-ones prepn - by treating 3-hydroxy, 3-alkoxy or 3-acyloxygona-1,3,5(10)-trienes with antimony pentafluori |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2151450A5 true FR2151450A5 (en) | 1973-04-20 |
Family
ID=9081078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7127672A Expired FR2151450A5 (en) | 1971-07-28 | 1971-07-28 | Gona-4,9-dien-3-ones prepn - by treating 3-hydroxy, 3-alkoxy or 3-acyloxygona-1,3,5(10)-trienes with antimony pentafluori |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2151450A5 (en) |
-
1971
- 1971-07-28 FR FR7127672A patent/FR2151450A5/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |