| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_21977e40c08969f3e950eb43ecafe0cb |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D407-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-935 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-935
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D407-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate |
1992-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1996-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a93ce243bc4c79fff97d28af65e3583
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e016486248503993114558a3834ec5ec |
| publicationDate |
1996-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0507625-B1 |
| titleOfInvention |
Method of producing alpha, beta unsaturated ketolactones |
| abstract |
The present invention provides a method of preparing alpha , beta -unsaturated ketolactones which are useful for production of prostaglandins having one or more halogen substituent(s) at the 16 or 17 portion in high yield, in which, a dimethyl (2-oxoalkyl) phosphonate having one or more halogen substituents, a starting material, is reacted with a bicyclolactone aldehyde under the presence of an alkali metal hydride and a zinc compound. |
| priorityDate |
1991-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |