GB461322A - Manufacture of compounds of the aetio-cholenone or aetio-allo-cholenone series - Google Patents
Manufacture of compounds of the aetio-cholenone or aetio-allo-cholenone seriesInfo
- Publication number
- GB461322A GB461322A GB22678/35A GB2267835A GB461322A GB 461322 A GB461322 A GB 461322A GB 22678/35 A GB22678/35 A GB 22678/35A GB 2267835 A GB2267835 A GB 2267835A GB 461322 A GB461322 A GB 461322A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aetio
- allo
- androstane
- cholenone
- dione
- 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
Abstract
Compounds of the aetio-cholenone or aetio-allo-cholenone series are obtained by causing halogen to act on a compound of the aetio-cholanone or aetio-allo-cholanone series and treating the halogen compound so produced with an agent that eliminates hydrogen halide, such as a tertiary amine. Amines mentioned for this purpose are pyridine, quinoline and dimethylaniline. Transformations according to the present invention which are mentioned are the conversion of aetio-cholane dione and aetio - allo - cholanone into androstene - diones-(3 : 17). Androstane-ol-(17)-one-(3) and aetio-allo-cholanol-(17)-one-(3) and their esters into androstene-ol-(17-ones-(3) and esters thereof. In examples: (1) bromine is added to a glacial acetic acid solution of androstane-dione, and the product is precipitated with water. The recrystallized bromo-androstane-dione-(3 : 17) is boiled with dry pyridine for 15 hours, whereupon the solution is acidified and the andro-stene-dione extracted with ether; (2) bromine is added to a glacial acetic acid solution of androstane-ol-(17)-one-(3)-acetate obtained as described in Specification 461,335 and the bromo-androstane-ol-(17)-one-(3)-acetate precipitated with water. This product is treated with boiling quinoline and worked up as in example (1) to give androstene-ol-(17)-one-(3)-acetate. The process can also be applied to aetio-cholanol-(17)-one-(3)-acetate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH461322X | 1935-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB461322A true GB461322A (en) | 1937-02-12 |
Family
ID=4515739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22678/35A Expired GB461322A (en) | 1935-06-18 | 1935-08-12 | Manufacture of compounds of the aetio-cholenone or aetio-allo-cholenone series |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB461322A (en) |
-
1935
- 1935-08-12 GB GB22678/35A patent/GB461322A/en not_active Expired
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