http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01151558-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f8cfa5aee4410611b5c562275c9f8e3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-61 |
| filingDate | 1987-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1e50965cdba5e94449399bde655ecb1 |
| publicationDate | 1989-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01151558-A |
| titleOfInvention | Production of 2,3,5,6-tetrachloropyridine |
| abstract | PURPOSE: To obtain the title compound useful as an intermediate for medicine and agricultural chemical in suppressed impurity, high yield and high purity, by chlorinating 2,6-dichloropyridine, etc., in the presence of a catalyst under a specific temperature. n CONSTITUTION: 2,6-Dichloropyridine and/or 2,3,6-trichloropyridine used as a raw material is chlorinated in the presence of a catalyst (e.g. FeCl 3 , FeBr 3 , etc.) to provide 2,3,5,6-tetrachloropyridine. When the concentration of 2,3,5,6- tetrachloropyridine in reaction liquid attains ≥60mol.% in the above-mentioned reaction, reaction temperature is set to ≤170°C. The above-mentioned method remarkably suppresses formation of pentachloro-pyridine which is impurity. n COPYRIGHT: (C)1989,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107382835-A |
| priorityDate | 1987-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.