http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109796365-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-43 |
| filingDate | 2019-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109796365-B |
| titleOfInvention | Synthetic method of dye intermediate with N-acetate structure |
| abstract | The invention discloses a synthesis method of a dye intermediate with an N-acetate group structure, which comprises the steps of carrying out reflux reaction on substituted aniline, chloroacetic ester and an acid-binding agent at the temperature of 80-110 ℃ for 0.5-2.0 h, adding a catalyst and zinc powder, and further carrying out water diversion reflux reaction at the temperature of 105-130 ℃ for 1.0-3.0 h to obtain the dye intermediate; the dye intermediate can be directly used for dye synthesis, the synthesis method has the advantages of high catalytic reaction speed, high product purity (HPLC) of more than 99 percent, high yield of more than 98 percent and the like, and the method is particularly suitable for synthesizing the dye intermediate containing the N, N-diacetate structure with the purity of more than 99 percent. |
| priorityDate | 2019-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.