GB763210A - Substituted phenanthrene compounds - Google Patents
Substituted phenanthrene compoundsInfo
- Publication number
- GB763210A GB763210A GB29602/55A GB2960255A GB763210A GB 763210 A GB763210 A GB 763210A GB 29602/55 A GB29602/55 A GB 29602/55A GB 2960255 A GB2960255 A GB 2960255A GB 763210 A GB763210 A GB 763210A
- Authority
- GB
- United Kingdom
- Prior art keywords
- groups
- examples
- keto
- univalent
- acid hydrolysis
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/72—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 spiro-condensed with carbocyclic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
- C07C2603/26—Phenanthrenes; Hydrogenated phenanthrenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises a dodecahydrophenanthrene of the formula <FORM:0763210/IV(b)/1> wherein the 7-position is substituted by a bivalent group convertible to keto by acid hydrolysis or a pair of univalent groups convertible to a single keto group by acid hydrolysis, and a decahydrophenanthrene of the formula <FORM:0763210/IV(b)/2> wherein the 7-position is substituted by a univalent group convertible to keto by acid hydrolysis. Examples of bivalent groups are cyclic ketal and cyclic thioketal groups such as ethylenedioxy, ethylene dithioketal and ethylene hemithioketal groups, examples of pairs of univalent groups are the non-cyclic ketals such as dimethyl ketal, and examples of univalent groups are the enol ether groups such as ethyl enol ether. The above compounds are prepared by the oxidation of the corresponding 1,4-dihydroxy-compounds by means of aluminium alkoxide and a ketone or by means of a complex of chromium trioxide and pyridine. In the examples two stereoisomers of 4b-methyl-1-keto-4 - hydroxy - 7 - ethylenedioxy - 1,2,3,4,4a,4b, 5,6,7,8,10,10a - dodecahydrophenanthrene are prepared melting points of 219-220 DEG C. and 130-138 DEG C. Specifications 763,207 and 763,208 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US763210XA | 1951-12-22 | 1951-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB763210A true GB763210A (en) | 1956-12-12 |
Family
ID=22131254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29602/55A Expired GB763210A (en) | 1951-12-22 | 1952-12-19 | Substituted phenanthrene compounds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB763210A (en) |
-
1952
- 1952-12-19 GB GB29602/55A patent/GB763210A/en not_active Expired
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