http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110668948-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C221-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C245-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-63 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-45 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-08 |
| filingDate | 2019-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110668948-B |
| titleOfInvention | Preparation method of 4-chloro-2-fluoro-5-nitroacetophenone |
| abstract | The invention discloses a preparation method of 4-chloro-2-fluoro-5-nitroacetophenone, which is characterized in that m-fluoroaniline is used as an initial raw material, and the 4-chloro-2-fluoro-5-nitroacetophenone is obtained through acetylating amino protection, Friedel-crafts acylation reaction, hydrolysis reaction and Sandmeyer reaction and finally nitration. The invention has the advantages of easily obtained raw materials, low requirement on reaction conditions, less side reactions and high yield. |
| priorityDate | 2019-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.