http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103073518-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D275-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D275-04 |
| filingDate | 2011-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103073518-B |
| titleOfInvention | The method of preparation 1,2-benzisothiazole-2-ketone and salt thereof |
| abstract | The present invention relates to the method for preparation 1,2-benzisothiazole-2-ketone and salt thereof.The method comprises: by being heated together with METHYLPYRROLIDONE by sodium sulphite hydrate, and sodium sulphite hydrate is dewatered at least partly; 2-chlorobenzamide is added in gained mixture, heats further; By gained mixture cooling also use hydrogen peroxide treatment.The method obtains the sodium salt of 1,2-benzisothiazole-2-ketone with good yield.If needed, 1, the 2-benzisothiazole-2-ketone dissociated can be obtained by acidifying. |
| priorityDate | 2011-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.