http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111747839-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2ce63b41e0f3c63530b40216c20d532 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-445 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-34 |
| filingDate | 2020-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95a9117f574bb3c09450b4931c1c5951 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cb911512501cc0e12eabb7d083b73f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_638da945ff3ea1a12575bcca9b16b1ac |
| publicationDate | 2020-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111747839-A |
| titleOfInvention | A kind of synthetic method of 2-(4'-ethylbenzoyl) benzoic acid |
| abstract | In order to be able to prepare 2-(4'-ethylbenzoyl)benzoic acid with low chlorine content, industrialized implementation, mild production conditions and lower cost, the present invention provides a 2-(4'-ethylbenzene The synthesis method of formyl) benzoic acid comprises the following steps: (1) adding nitrobenzene or nitromethane to ethylbenzene; (2) adding phthalic anhydride; (3) adding aluminum trichloride; (4) after the reaction is completed The reaction solution is added to dilute hydrochloric acid or dilute sulfuric acid for hydrolysis; (5) after the hydrolysis is completed, the water layer is separated, the solution after the water layer is removed by steam distillation, ethylbenzene and nitrobenzene are evaporated, and the remaining feed liquid is filtered to obtain 2-(4'-ethylbenzoyl)benzoic acid. The invention solves the problems of high chlorine content in the product and difficult solvent recovery, and the reaction conditions of the invention are mild, and the temperature does not exceed 30 DEG C; meanwhile, the difficulty of wastewater treatment is reduced, and the product cost is low. |
| priorityDate | 2020-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.