GB890835A - New cyclopentanophenanthrene derivatives and processes for the production thereof - Google Patents
New cyclopentanophenanthrene derivatives and processes for the production thereofInfo
- Publication number
- GB890835A GB890835A GB19892/58A GB1989258A GB890835A GB 890835 A GB890835 A GB 890835A GB 19892/58 A GB19892/58 A GB 19892/58A GB 1989258 A GB1989258 A GB 1989258A GB 890835 A GB890835 A GB 890835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloro
- chloranil
- processes
- production
- steroids
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises 6-chloro-D 1,4,6- and 6-chloro-D 4,6-steroids of the general formulae <FORM:0890835/IV (b)/1> and <FORM:0890835/IV (b)/2> wherein X is =O or <FORM:0890835/IV (b)/3> Y is hydrogen, fluoro, chloro or bromo, and R is hydrogen or a hydrocarbon carboxylic acyl group of less than 12 carbon atoms, together with a process for the preparation of the 6-chloro-D 1,4,6-steroids of the above formula by dehydrogenating a 21-ester of the corresponding 6a -chloro-D 4-pregnene derivative with chloranil. The process may be conducted in one step using chloranil in n-amyl alcohol, or in two steps using chloranil in xylene to give the intermediate D 4,6-derivative which is further dehydrogenated with chloranil in n-amyl alcohol or with selenium dioxide in t-butanol. Detailed examples illustrate the invention. Specifications 834,372 and 890,834 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX890835X | 1957-06-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB890835A true GB890835A (en) | 1962-03-07 |
Family
ID=19743138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19892/58A Expired GB890835A (en) | 1957-06-22 | 1958-06-20 | New cyclopentanophenanthrene derivatives and processes for the production thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB890835A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1201342B (en) * | 1963-03-05 | 1965-09-23 | Olin Mathieson | Method of making steroids |
DE2606299A1 (en) * | 1975-02-18 | 1976-09-09 | Syntex Inc | PROCESS FOR PRODUCING 3-ENOLAETHERS FROM 11BETA-HYDROXY-DELTA HIGH 4-PREGNEN-3-ONES AND DERIVATIVES THEREOF |
-
1958
- 1958-06-20 GB GB19892/58A patent/GB890835A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1201342B (en) * | 1963-03-05 | 1965-09-23 | Olin Mathieson | Method of making steroids |
DE2606299A1 (en) * | 1975-02-18 | 1976-09-09 | Syntex Inc | PROCESS FOR PRODUCING 3-ENOLAETHERS FROM 11BETA-HYDROXY-DELTA HIGH 4-PREGNEN-3-ONES AND DERIVATIVES THEREOF |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB890835A (en) | New cyclopentanophenanthrene derivatives and processes for the production thereof | |
GB897707A (en) | New dyestuff of the perylene tetracarboxylic acid series | |
GB903394A (en) | Cyclopentanophenanthrene compounds and process for their manufacture | |
GB998523A (en) | A process for the production of 6-chloro-3-keto-í¸4,6-steroids | |
GB904123A (en) | New cyclopentanophenanthrene compounds and process for the production thereof | |
GB895842A (en) | New cyclopentanophenanthrene derivatives and process for the production thereof | |
GB933866A (en) | New cyclopentanophenanthrene derivatives and process for the production thereof | |
GB921534A (en) | Cyclopentanophenanthrene derivatives and process for the production thereof | |
GB830009A (en) | Hexahydrobenzoate of 19-nor-testosterone | |
GB1103618A (en) | Production of enamelled steel articles | |
GB944906A (en) | New 6-halo-steroids and process for the preparation thereof | |
GB951460A (en) | Unsaturated halogenated steroids and process for their manufacture | |
GB979900A (en) | A vat dyestuff and a process for its manufacture and use | |
GB853293A (en) | Cyclopentanophenanthrene derivatives and process for the preparation thereof | |
GB991804A (en) | New derivatives of cyclopentanophenanthrene and processes for their preparation | |
GB973927A (en) | Thiazolosteroids and production thereof | |
GB940031A (en) | New steroid derivatives and processes for the production thereof | |
GB889408A (en) | Methylated steroidal lactones | |
GB719402A (en) | A new and improved cyclopentanopolyhydrophenanthrene derivative and methods for its production | |
GB1037380A (en) | Process for the production of basic esters of pyridine-carboxylic acids | |
ES241806A1 (en) | Procedure for the preparation of dioxazine colorants. (Machine-translation by Google Translate, not legally binding) | |
GB921533A (en) | Cyclopentanophenanthrene derivatives and process for the production thereof | |
GB854409A (en) | New cyclopentanophenanthrene derivatives and process for the production thereof | |
CA566893A (en) | Process for producing utility gas from petroleum derivatives | |
GB929274A (en) | Steroids and their production |