http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112194603-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C315-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-04 |
| filingDate | 2019-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112194603-B |
| titleOfInvention | A kind of preparation method of 2-chloro-3-methyl-4-methylsulfonylbenzoic acid |
| abstract | The present invention provides a kind of preparation method of 2-chloro-3-methyl-4-methylsulfonylbenzoic acid, described preparation method is: 2-chloro-3-methyl-4-methylsulfonyl acetophenone and oxidizing agent React under the catalysis of metal catalyst, obtain described 2-chloro-3-methyl-4-methylsulfonylbenzoic acid, and described oxygenant is selected from any one or at least two in oxygen, air or hydrogen peroxide The combination; the metal catalyst is a manganese-containing compound and/or a cobalt-containing compound. The addition of the oxidizing agent in the present invention will not lead to crystallization of the raw materials, so that the raw materials can be reacted as completely as possible, and avoid the generation of a large amount of strongly acidic saline wastewater; in addition, the reaction efficiency is improved through the selection of the metal catalyst and the reaction solvent, and the reaction process is fast smooth. Therefore, in the preparation method provided by the invention, the raw materials react completely, the product quality is good, the operation is simple, and a large amount of industrial wastes will not be generated, which is a green and environment-friendly preparation process. |
| priorityDate | 2019-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.