http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102875463-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6574d03ba318fa2e142b813a1a68e112 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-89 |
| filingDate | 2012-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d52e314d309b658aadda7e2c95516360 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec4d11f4346a2d034ce9c59ba06ebef9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e3412fd8ff1067600c5b5b9a2005502 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fadd0ae1a7aad93ed097b9ea11e4d62c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36a9f350d44a3d8590086da8a71494e5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10b3d2643ec2d5d8b365daaa72362654 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc5eee3e6aec6638f147a10087d16af5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8cef7e1f15388c495faa00a7e718deb3 |
| publicationDate | 2014-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102875463-B |
| titleOfInvention | Synthesis method for high-quality and low-cost bispyrithione |
| abstract | The invention discloses a synthesis method for synthesizing high-quality and low-cost bispyrithione and relates to a synthesis method for the bispyrithione. The synthesis method comprises the following steps of: 1, performing mild oxidation reaction on halogenated pyridine and hydrogen peroxide in the presence of a catalyst to synthesize halogenated pyridine-N-oxide; 2, extracting and purifying the halogenated pyridine-N-oxide by using a solvent; 3, reacting the purified halogenated pyridine-N-oxide and a sulfhydrylation reagent under the alkaline condition to obtain 2-mercaptopyridine-N-oxide sodium; reacting 4,2-mercaptopyridine-N-oxide sodium under the acid condition to obtain 2-mercaptopyridine-N-oxide; and reacting 5,2-mercaptopyridine-N-oxide and oxidant to obtain a targeted product bispyrithione. By the method, the quality stability of a product can reach more than 99.5 percent; reaction conditions are mild; and cost is low. |
| priorityDate | 2012-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.