http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-680778-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c902faf6ae746c51fc8010672fc22894 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J71-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J75-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J71-00 |
| filingDate | 1950-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1952-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-680778-A |
| titleOfInvention | Adducts of bisnor-5, 7, 9 (11)-cholatrien-22-al-3-one |
| abstract | Bisnor - 5,7,9(11) - cholatrien - 22 - al - 3 - one adducts of the formula <FORM:0680778/IV (b)/1> wherein A is an adduct radical derived from maleic acid, maleic anhydride or a diester of maleic acid wherein the esterifying radicals are stable towards oxidation by ozone are obtained by ozonizing the 22:23 double bond of dehydroergosten-3-one of the formula <FORM:0680778/IV (b)/2> with from about 1.0 to about 1.25 mols. of ozone per mole. of starting dehydroergosten-3-one adduct, in an organic solvent for the reaction, at a temperature between about -80 DEG C. and +30 DEG C., decomposing the thus-produced 22:23 ozonide under reductive conditions, and isolating the bisnor-5,7,9(11)-cholatrien-22-al-3-one adduct from the reaction product. The ester groups of the maleic acid diester are non-reactive under the conditions of the reaction and may contain from one to eight carbon atoms inclusive. The ozonide may be decomposed with powdered zinc and glacial acetic acid. |
| priorityDate | 1949-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.