http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107286087-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-84 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-84 |
| filingDate | 2017-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107286087-B |
| titleOfInvention | Synthetic method of 2-cyano-3-chloro-5-trifluoromethylpyridine |
| abstract | The invention discloses a synthetic method of 2-cyano-3-chloro-5-trifluoromethylpyridine, belonging to the technical field of organic synthesis. The method comprises the following steps: (1) taking 2, 3-dichloro-5-trifluoromethylpyridine as a raw material, adding a catalyst into a solvent system, and synthesizing 2-fluoro-3-chloro-5-trifluoromethylpyridine through fluorination, (2) adding the 2-fluoro-3-chloro-5-trifluoromethylpyridine obtained in the step 1 into a cyaniding reagent for cyaniding, washing with water, and distilling to obtain the 2-cyano-3-chloro-5-trifluoromethylpyridine. The purity of the product can reach 99.5%, the yield can reach 90%, the reaction conditions in the process are mild, the operation is easy, and the method is suitable for large-scale production. |
| priorityDate | 2017-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.