http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1080677-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a1d54c08eeb8540176be204d4fb87ef3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J31-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J31-00 |
| filingDate | 1965-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1967-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1080677-A |
| titleOfInvention | Steroid dehydrosulfonylation |
| abstract | The invention comprises a process for the dehydrosulphonylation of a steroid having a 12-sulphonyloxy group to form a D 11-steroid by reaction with a metal glycolate of a polyethylene glycol monoalkyl ether having a molecular weight of at least 200 in the presence of a non-hydroxylic solvent, followed, if desired, by esterification of carboxy or hydroxy groups. 3 a - Hydroxy - 12a - benzenesulphonyloxy-or p-toluenesulphonyloxy-cholanic acids are prepared by hydrolysis of their 3-acetoxy-methyl esters. 3a - Ethoxycarbonyloxy - 12a - benzene-sulphonyloxy- or p-toluenesulphonyloxy-pregnan-20 -one-ethylene ketals are prepared by successive reaction of the corresponding 3a ,12a -diol with ethyl chlorocarbonate and a sulphonyl chloride. |
| priorityDate | 1964-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.