http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108530326-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/C07C315-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-44 |
| filingDate | 2018-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108530326-B |
| titleOfInvention | Preparation method of 2-nitro-4-methylsulfonylbenzoic acid |
| abstract | The invention provides a preparation method of 2-nitro-4-methylsulfonylbenzoic acid, which comprises the steps of taking 2-nitro-4-methylsulfonyltoluene as an initial raw material, taking aliphatic carboxylic acid as a solvent, taking one or more N-hydroxylamine compounds as a catalyst, taking one or more of nitric acid, nitrate or nitrite as a cocatalyst, taking molecular oxygen as an oxidant, and reacting for 0.5-15 hours under the conditions of 0.1-5 MPa and 60-180 ℃ to obtain the 2-nitro-4-methylsulfonylbenzoic acid. The method overcomes the defects of large three-waste amount, serious equipment corrosion and the like of the existing industrial production method of the 2-nitro-4-methylsulfonylbenzoic acid, and is beneficial to realizing the clean production of the 2-nitro-4-methylsulfonylbenzoic acid. |
| priorityDate | 2018-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.