http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01308257-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 | 1988-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1e50965cdba5e94449399bde655ecb1 |
| publicationDate | 1989-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01308257-A |
| titleOfInvention | Distillation of chlorinated pyridine |
| abstract | PURPOSE: To prevent a compound useful as a synthetic intermediate for drugs and agricultural chemicals while preventing tar formation, by reacting pyridine with chlorine in the presence of a diluent in a gas phase, neutralizing and further distilling by using water. n CONSTITUTION: Pyridine is reacted with chlorine in the presence of a diluent such as carbon tetrachloride or water in a gas phase. The prepared reaction solution is neutralized with an alkali (e.g. NaOH) and separated to give an organic layer containing chlorinated pyridine. Water is added to the organic layer, which is distilled to give 2-chloropyridine and/or 2,6-dichloropyridine. The amount of water is preferably ≥ equivalent weight based on pyridine existing in the system. n COPYRIGHT: (C)1989,JPO&Japio |
| priorityDate | 1988-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.