http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106977974-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B3-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B3-16 |
| filingDate | 2017-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106977974-B |
| titleOfInvention | A kind of quinone dyestuff and preparation method thereof |
| abstract | The invention discloses a kind of preparation methods of quinone dyestuff, by naphthols raw material and oxidant in the aqueous solution of organic solvent oxidative coupling, then the quinone dyestuff is made through acid out, crystallization；The oxidant is permanganic acid and its salt；The organic solvent is at least one of tetrahydrofuran, the alcohol of C1~4；Wherein, the volume ratio of organic solvent and water is 1: 1~2.The method of the present invention simple process, the quinone mother nucleus structure compound tentatively modified can effectively solve the problems, such as the solubility problem and non-selectivity decorating site of quinone dyestuff, provide possibility for subsequent secondary modification, transformation. |
| priorityDate | 2017-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.