http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57108069-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7962109cd4763907b82b66760cd0ae8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-22 |
| filingDate | 1980-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3f5badca6da9e92efa957c3fa5d10d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2fac68e45c8cdec84ea69d3e5e27f9f |
| publicationDate | 1982-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57108069-A |
| titleOfInvention | Preparation of 1-(4-pyridyl)pyridinium chloride |
| abstract | PURPOSE: To prepare the titled compound useful as an intermediate for the preparation of pharmaceuticals, pesticides, etc., economically, in an industrial scale, in high yield, without producing by-products causing troubles in the reaction apparatus, by reacting pyridine with chlorine in the presence of a catalytic amount of a sulfur compound. n CONSTITUTION: The objective compound can be prepared in an yield of as high as ≥90%, by blowing chlorine through pyridine in the presence of a catalytic amount of a sulfur compound, and reacting at 60W120°C for 1W15hr. The sulfur compound is a sulfur chloride such as SCl 2 , S 2 Cl 2 , etc. or one or more substances selected from sulfur element, H 2 S, CS 2 , NaHS, etc. The amount of the sulfur compound is 0.1W30mol% of the effective chlorine necessary for the chlorination of pyridine as sulfur chloride, and the amount of pyridine is 3.0W20 times mole of the effective chlorine necessary for the chlorination of pyridine. n EFFECT: There is no discharge of waste which is regulated by the pollution control laws. n USE: An intermediate for the preparation of esp. a pyridine derivative substituted at 4-position. n COPYRIGHT: (C)1982,JPO&Japio |
| priorityDate | 1980-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.