| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cbf39c5519ede057f3dc9a73f2d85ac2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4a071870fce08ce23a3fcb4a4f790e46 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-54 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-53 |
| filingDate |
2021-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aab09a67bd009fdcce87b90a58bcf5f1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d31e30b27a829c409d19331a3528405
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3940a20828b866cde644f39f655568e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11416d799e688a8824a7bf607a3d87af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_870e87aa8d4a5860cb3e0b49a7d736a3 |
| publicationDate |
2021-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2021238839-A1 |
| titleOfInvention |
Preparation method for (4-isopropoxy-2-methyl) phenyl isopropyl ketone |
| abstract |
Disclosed is a preparation method for (4-isopropoxy-2-methyl) phenyl isopropyl ketone, comprising: reacting m-cresol and thiocyanate under the action of a catalyst to obtain a product A; reacting the product A and halogenated isopropane under the action of alkali and the catalyst to obtain a product B; and reacting the product B and isopropyl magnesium halide for treatment to obtain the (4-isopropoxy-2-methyl) phenyl isopropyl ketone. The purity of the (4-isopropoxy-2-methyl) phenyl isopropyl ketone prepared by the steps is more than 99%, and the total yield is more than 79%. The method avoids the use of a toxic reagent and the generation of a large amount of acidic wastewater, lowers the reaction temperature, increases the reaction yield, has a simple and efficient process route, and reduces costs; and the obtained product has high purity. The method greatly improves the production safety, and is easy for industrialized popularization. |
| priorityDate |
2020-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |