http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110172038-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-48 |
| filingDate | 2018-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110172038-B |
| titleOfInvention | One-pot method for preparing analgin magnesium |
| abstract | The invention discloses a one-pot process for preparing analgin magnesium. The method uses 4-methylamino antipyrine, formaldehyde and magnesium salts or oxides thereof as raw materials, reacts with SO gas to prepare 1 -phenyl -2,3-dimethyl-4-methylaminopyrazoline-5-ketone-N-methylsulfonic acid magnesium crude product, and then the above-mentioned crude product was further purified by recrystallization to obtain 1-phenyl-2,3 -Dimethyl-4-methylaminopyrazoline-5-ketone-N-methylsulfonic acid magnesium hexahydrate. The process of the invention is simple, the raw materials are cheap and easy to obtain, the synthesized analgin magnesium product has high yield, good quality and stable process, and is suitable for industrial production. |
| priorityDate | 2018-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.