http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-449461-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a27ca344c4cbf344abe5af956ed2d12f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J1-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J1-00 |
| filingDate | 1934-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1936-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-449461-A |
| titleOfInvention | Process for the manufacture of physiologically active derivatives of cyclopentano-phenanthrol |
| abstract | Saturated or unsaturated 3 : 17-diketones of the cyclopentono - dimethylpolyhydro - phenanthrene series of the formula C19H28O2 or C19H26O2 respectively are reduced to the corresponding di-alcohols. The conditions under which the reduction is effected determine the proportion in which the different isomeric forms are produced. Thus on reduction in neutral and alkaline media a preponderating amount of the trans form is produced, whereas in acid solution it is the cis form which predominates. In examples: (1) the saturated diketone obtained according to example 1 of Specification 448,183 is hydrogenated in glacial acetic acid using platinum as a catalyst; (2) the unsaturated diketone obtained according to example 2 of Specification 448,183 is hydrogenated as in (1) to yield the same saturated di-alcohol; (3) the unsaturated diketone obtained according to example 3 of Specification 448,183 is reduced by the action of sodium in alcohol to give a dihydroxycyclopentanodimethyltetradecahydrophenanthrol of the formula C19H32O2. |
| priorityDate | 1934-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.