http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111943818-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-1806 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-0006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-18 |
| filingDate | 2020-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111943818-B |
| titleOfInvention | A method for preparing 4,4'-bistrifluoromethyl diphenyl ether |
| abstract | The invention discloses a method for preparing 4,4'-bistrifluoromethyl diphenyl ether. It comprises the following steps: adding 4-nitrobenzotrifluoride and p-trifluoromethylphenol into the solvent, adding a catalyst, then heating up the reaction, and after the raw materials are completely reacted, cooling down to room temperature, filtering, and washing the filter cake with a solvent, Part of the solvent was recovered from the filtrate under reduced pressure, cooled, crystallized, filtered, washed with water, and dried to obtain 4,4′-bistrifluoromethyl diphenyl ether. The method for preparing 4,4'-bistrifluoromethyl diphenyl ether provided by the invention has the following beneficial effects: the raw materials are easy to purchase, the reaction solvent can be recycled and used mechanically, the post-treatment operation is simple, and the yield is high. |
| priorityDate | 2020-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.