http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106883202-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-62 |
| filingDate | 2017-03-14-04:00^^<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-106883202-B |
| titleOfInvention | A kind of preparation method of Ascorbyl Palmitate |
| abstract | The present invention provides a kind of preparation methods of Ascorbyl Palmitate, it include: L-AA and palmitinic acid esterification under concentrated sulfuric acid catalyst, ethyl acetate first is added dropwise to reaction system after fully reacting, then ice water is added dropwise, Ascorbyl Palmitate crude product is obtained after filteringļ¼Using re-crystallizing in ethyl acetate, target product Ascorbyl Palmitate is obtained.Preparation method of the invention, process safety is controllable, post processor is simplified, and product purity is high, meets European Pharmacopoeia required standard, therefore be more suitable for industrialized production. |
| priorityDate | 2017-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.