http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4960896-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f88f84fc279fe5d0b9b5ec3c88c2e2b2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-80 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-80 |
| filingDate | 1987-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1990-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_322feee405794c458c99fb427506077b |
| publicationDate | 1990-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4960896-A |
| titleOfInvention | Process for the preparation of 5-chloro and 5-bromo-2-hydroxynicotinic acids |
| abstract | A process for the preparation of 5-halo-2-hydroxynicotinic acids having the formula: <IMAGE> wherein X is chlorine or bromine, Y and Z are selected from hydrogen, loweralkyl or loweralkyl, is described wherein a corresponding 2-hydroxynicotinic acid is halogenated with alkali-metal hypohalite in a strongly alkaline solution pH 12 and above. Certain aspects of the isolation of the product are directed to avoiding replacement of the carboxy group with halogen. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016096942-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015004040-A1 |
| priorityDate | 1985-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 151.