http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113880782-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9805ccb5844d8c8ddca7f572690b03db |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2229-18 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7607 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7807 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J29-7407 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-46 |
| filingDate | 2021-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4bebbfdf2aaa26ca9d27f40013ad98a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e6847bc324d6ea597214c15885b9377 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc010dc14d35bc81231ae81262b2746e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e89073759807b1007b562ee55a2bfcd |
| publicationDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113880782-A |
| titleOfInvention | A Novel Synthesis Method of Antioxidant 565 |
| abstract | The present invention proposes a novel synthesis method of antioxidant 565. The steps include: S1, dissolving 2,6-di-tert-butylphenol in an organic solvent, adding nitric acid dropwise, and after the reaction is completed, the reaction solution is subjected to rotary evaporation, Washing with petroleum ether, washing with water, and vacuum drying to obtain 4-nitro-2,6-di-tert-butylphenol crystals; S2, dissolving the dried 4-nitro-2,6-di-tert-butylphenol crystals in Organic solvent, N 2 protection, then add the precious metal catalyst supported by molecular sieve, fill H 2 , carry out reduction reaction to obtain 4-amino-2,6-di-tert-butylphenol; S3, 4-amino-2,6-di-tert-butylphenol is obtained; Di-tert-butylphenol, cyanuric chloride, n-octane mercaptan and NaOH are added to the condensation tank, and the condensation reaction is carried out under the condition of N 2 protection and 40-70°C. After the reaction is completed, the reaction solution is filtered and rotary evaporated to obtain the finished product. The invention has the advantages of safe reaction, the catalyst is not affected by halogen, and the product quality and yield are high, which is favorable for factory production. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115353742-A |
| priorityDate | 2021-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.