http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109879817-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-52 |
| filingDate | 2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109879817-B |
| titleOfInvention | Preparation method of mesosulfuron-methyl |
| abstract | The invention relates to a method for preparing mesosulfuron, which uses 4-cyano-2-nitrobenzoic acid methyl ester as a starting material, firstly carries out nucleophilic substitution reaction with benzyl mercaptan, then carries out reduction hydrogenation on raney nickel, mesyl chloromethylation, chlorine chlorination, ammonia ammoniation to obtain a key intermediate 2-methoxycarbonyl-5-mesyl aminomethylbenzenesulfonamide, and finally carries out condensation to obtain a target product, namely the mesosulfuron. |
| priorityDate | 2019-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 167.