http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021042721-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8a0bbc781092b8115d20a075a0d7a00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C245-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-045 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C245-06 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-045 |
| filingDate | 2020-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7961e7b7dc96160e288a6d3a898e410 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bcd889dec47ce537ba531a2c060a19d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce1782f3b35d0123a0151e23aaecef1d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37c4fc96251d27f5d132e99a9250af63 |
| publicationDate | 2021-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2021042721-A1 |
| titleOfInvention | Method for preparing m-trifluoromethylphenol |
| abstract | Disclosed is a method for preparing m-trifluoromethylphenol. The present invention provides a method for preparing m-trifluoromethylphenol, which comprises the following steps: step (1): in a continuous flow reactor, subjecting an aqueous sulfate solution and an aqueous sodium nitrite solution to a diazotization reaction to obtain a diazonium salt solution, wherein the aqueous sulfate solution is a mixture of a sulfuric acid aqueous solution and m-trifluoromethyl aniline; and step (2): in the continuous flow reactor, subjecting the diazonium salt solution obtained in step (1) to a hydrolysis reaction in the presence of an aromatic solvent to obtain the m-trifluoromethylphenol, wherein the temperature of the hydrolysis reaction is 101ºC-200ºC. The continuous preparation method can increase the reaction concentration, greatly shorten the reaction time, improve the production efficiency and reduce safety risks; and the method can achieve a yield of 95% or more and a purity of 99.5% or more, is easy and simple to operate, and has the advantages of being safer, more environmentally friendly, of a lower cost, etc. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114656365-A |
| priorityDate | 2019-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.