http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109293591-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D253-075 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D253-075 |
| filingDate | 2018-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109293591-B |
| titleOfInvention | Preparation method of triazone |
| abstract | The invention relates to a preparation method of triazone, which comprises the following steps: carrying out hydrolysis reaction on chloropinacolone at the temperature of 80-140 ℃ under the action of a solvent and alkali to obtain a compound I, wherein the solvent is water; carrying out oxidation reaction on the compound I in the presence of oxygen under a neutral or weakly alkaline condition by taking Pt as a catalyst to obtain a compound II; carrying out cyclization reaction on the compound II and thiocarbamide under the catalysis of acid to obtain triazone; wherein, the structural formula of the compound I is as follows: the structural formula of the compound II is as follows: the invention takes the chloropinacolone as the raw material and water as the solvent, thereby avoiding generating high-salinity wastewater, the invention takes Pt as the catalyst and oxygen as the oxidant, avoids using hydrogen peroxide, and the catalyst can be recycled, thereby reducing the cost of the raw material. |
| priorityDate | 2018-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.