http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106866384-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-055 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-055 |
| filingDate | 2016-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106866384-B |
| titleOfInvention | Preparation method of hydroxytyrosol |
| abstract | The invention provides a preparation method of hydroxytyrosol, which comprises the steps of uniformly stirring a solvent, 3, 4-dimethoxy phenethyl alcohol and aluminum triiodide, adding boron trifluoride tetrahydrofuran or boron trifluoride diethyl ether, heating up for reflux, cooling to room temperature after complete reaction, filtering, adding active carbon into filtrate, filtering again, recovering the filtrate to be dry to obtain light yellow oily residue, then adding dichloromethane, refluxing, cooling to room temperature for pulping, and filtering to obtain white powdery solid hydroxytyrosol. The invention avoids the complex operation of multiple aqueous phase extraction in the conventional method, and the product content is more than 98 percent and far exceeds the product quality in the prior art. |
| priorityDate | 2016-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.