http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113354558-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C249-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-58 |
| filingDate | 2021-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113354558-B |
| titleOfInvention | Preparation method of 2-amino-5-fluorobenzonitrile |
| abstract | The invention discloses a preparation method of 2-amino-5-fluorobenzonitrile, which comprises the following specific steps: (1) taking 2, 5-difluorobenzaldehyde as an initial raw material, and carrying out condensation reaction with hydroxylamine hydrochloride under the condition of triethylamine to generate a compound III; (2) dehydrating the compound III and phosphorus oxychloride to generate a compound IV; (3) aminolysis of compound IV with ammonia to form compound I; i.e. the 2-amino-5-fluorobenzonitrile. The preparation method has higher yield. |
| priorityDate | 2021-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.