http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105439824-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-055 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-21 |
| filingDate | 2015-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105439824-B |
| titleOfInvention | The synthetic method of piceatannol |
| abstract | The present invention provides a kind of synthetic method of piceatannol, includes the following steps：By 3,5- 3,5-dimethoxybenzoic alcohols and phosphorus oxychloride reaction, 3,5- dimethoxy-benzyl chlorides are obtained；3, the 5- dimethoxy-benzyl chlorides and Trimethyl phosphite of gained are added in solvent n,N-Dimethylformamide, waits for adding Veratraldehyde and catalyst sodium methoxide solution after reaction, obtains tetramethoxy piceatannol；The tetramethoxy piceatannol of gained is dissolved in chlorobenzene, triethylamine and aluminum trichloride (anhydrous) is added, obtains piceatannol.The present invention is reacted using Wittig-Homer, and raw material is easy to get, at low cost；Entire technological process is easy to operate, and product yield is high, is suitable for industrialized production. |
| priorityDate | 2015-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.