http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109232450-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D249-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D249-12 |
| filingDate | 2018-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109232450-B |
| titleOfInvention | Synthetic method of sulfentrazone |
| abstract | The invention discloses a synthetic method of sulfentrazone, which comprises the following steps: the compound (II) is used as a raw material, and is subjected to difluoromethylation, chlorination, bromination and mesylation to obtain a sulfentrazone final product. The invention bromizes the midbody obtained by chlorination, and then the obtained midbody after bromination and methylsulfonamide are catalyzed by a catalyst to directly obtain sulfentrazone, thereby not only having high chemical selectivity, but also avoiding dangerous processes such as nitration, hydrogenation and the like in the traditional process route, simultaneously avoiding a large amount of waste acid and waste water during nitration, being more green, efficient, safe and reliable. |
| priorityDate | 2018-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 95.