http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105753850-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3a9a4b45d7425553bf616921cb2fea9e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-847 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D409-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D409-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D409-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D409-06 |
| filingDate | 2016-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_200432132d66f7a22102c0b8dafc14f1 |
| publicationDate | 2016-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105753850-A |
| titleOfInvention | A kind of pyrazolone derivative and preparation method thereof |
| abstract | The invention discloses a pyrazolone derivative and a preparation method thereof, which is characterized in that the reaction mechanism is as follows: under alkaline conditions, compound I and compound II react after being catalyzed by a catalyst to generate compound III. Wherein X is halogen, R is aryl or heteroaryl. The preparation method improves the reaction efficiency and the selectivity of the reaction process through the use of a novel multi-component catalyst system, and the prepared target product has high purity. In addition, the preparation method is simple to operate, has low requirements on the environmental conditions of the reaction, and has high production process efficiency, which is very suitable for large-scale industrial production. |
| priorityDate | 2016-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.