| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2e2930d121efc5d86e61f3b89a4f5ea |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-3839 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 |
| filingDate |
1990-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a286102af8d436c1b35a53a1a27e3ac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d63afdb3004e3bcf6849233bcc96a3c8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc0deb65c5437e99d8796ec510f3fff7 |
| publicationDate |
1993-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5237094-A |
| titleOfInvention |
Process for the preparation of methylenebisphosphonic acids |
| abstract |
The present invention concerns a novel process for the preparation of methylenebisphosphonic acids of the formula I ##STR1## wherein Q 1 and Q 2 are independently hydrogen or halogen, by hydrolyzing the corresponding methylenebisphosphonic acid tetraester of the formula ##STR2## wherein R has the meaning of a straight or branched alkyl group containing 1 to 4 carbon atoms, and Q 1 and Q 2 have the same meaning as above. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7862552-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013108035-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7288673-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004171870-A1 |
| priorityDate |
1989-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |