http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102180773-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_65682d3e437c225d79b93953b4b26392 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-055 |
| filingDate | 2011-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df74d8e240c14f30236ae774f2ed285d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d53a2bc85e7f395d17701630de134dda http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7340a8e3031ccf1d6585a3c0726d827 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aefbe0e0bc77f61a64563364b7f3ca81 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e676ff9147484b8bd7c6c2ca204a2b68 |
| publicationDate | 2013-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102180773-B |
| titleOfInvention | Method for preparing resveratrol |
| abstract | The invention discloses a method for preparing resveratrol, which comprises the following steps of: (1) preparing an intermediate (E)-2-(4-methoxyphenyl)-3-(3,5-dimethoxyphenyl)-acrylic acid; (2) performing decarboxylation reaction on the intermediate to prepare Z-3,4',5-trimethoxystilbene; and (3) performing protecting group removal or isomerization on the Z-3,4',5-trimethoxystilbene to prepare E-3,4',5-trihydroxystilbene, namely trans-resveratrol. In the method for preparing the resveratrol, inorganic alkali or organic alkali is added into an organic solvent and copper salt with catalytic amount is taken as a catalyst in the step (2), so compared with a quinoline/Cu powder catalyst in the prior art, the copper salt catalyst ensures that reaction time is greatly shortened, the reaction temperature is obviously reduced and reactants are difficult to carbonize; and the obtained product is single and easy to separate and purify. |
| priorityDate | 2011-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.