http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108250049-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0292 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20 |
| filingDate | 2018-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108250049-B |
| titleOfInvention | Synthesis method of bisphenol fluorene |
| abstract | The invention discloses a green synthesis method of bisphenol fluorene, which comprises the steps of adding phenol, 9-fluorenone, 3-mercaptopropionic acid and an immobilized ionic liquid catalyst into a 150 w-400 w ultrasonic reaction kettle, and placing the reaction kettle in a water bath at 25-50 ℃ for reaction for 1-3 hours; collecting the immobilized ionic liquid catalyst through a magnetic field, and repeatedly utilizing the collected immobilized ionic liquid catalyst after washing and drying; washing the residual reaction liquid which is collected and loaded with the ionic liquid catalyst by boiling water, separating out crystals, carrying out suction filtration and vacuum drying on the crystals to obtain a bisphenol fluorene crude product, and recrystallizing the bisphenol fluorene crude product to obtain a white bisphenol fluorene crystal. Compared with the traditional catalyst for preparing bisphenol fluorene, the catalyst has the advantages of high reaction activity and high selectivity, and the catalyst is mild in reaction conditions, high in reaction efficiency and capable of obviously improving the quality of bisphenol fluorene. |
| priorityDate | 2018-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.