http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8400966-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24835eedf5463e4ccd4f65779c931f1f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-404 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 |
| filingDate | 1983-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0ab374a8abbcaf2970e34391efe9b95 |
| publicationDate | 1984-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-8400966-A1 |
| titleOfInvention | Process for the production of derivatives of hydroxy-methylene diphosphonic acid |
| abstract | New process for the production of derivatives of hydroxy-methylene diphosphonic acid from the corresponding carboxylic acid comprising: a) mixing said corresponding carboxylic acid with a P III reactant selected from the group comprised of phosphorus tri-halides, phosphorous acid and mixtures thereof, the reaction mixture being protected from moisture; characterized in that the molecular ratio between the P III reactant and said corresponding carboxylic acid is comprised between 13/12th and 18/12th and in that it further comprises the step: b) heating said reaction mixture to a temperature comprised between 80 and 110oC during a period of time comprised between 3 and 20 hours approximately. |
| priorityDate | 1982-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.