http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110950740-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-367 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-62 |
| filingDate | 2019-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110950740-B |
| titleOfInvention | A kind of synthetic method of hexafluorobisphenol A |
| abstract | The invention provides a method for synthesizing hexafluorobisphenol A, comprising the following steps: a) reacting hexachloroacetone and phenol under a Lewis acid catalyst to obtain hexachlorobisphenol A; b) combining hexachlorobisphenol A with hydrogen fluoride A fluorination reaction is carried out to obtain hexafluorobisphenol A. The method uses Lewis acid as a catalyst to change the electronic reaction characteristics of phenol, so that the para-carbon atom of phenol and the carbonyl group of hexachloroacetone undergo an addition and elimination reaction, instead of the oxygen atom of phenol and hexachloroacetone. The intermediate hexachlorobisphenol A is obtained by the nuclear substitution reaction, and then the hexachlorobisphenol A is fluorinated to obtain the hexafluorobisphenol A. The method replaces hexafluoroacetone and hexafluoropropylene oxide with hexachloroacetone, which is cheap, easy to obtain and less toxic, as raw materials, has lower requirements on equipment, is beneficial to safe production and reduces production cost, and is the synthesis of hexafluorobisphenol A. The method provides new ideas. The hexafluorobisphenol A prepared by the method has higher yield and higher purity. |
| priorityDate | 2019-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.