http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103214359-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_090e02c1ea64ae911504a83ff1588d71 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-255 |
| filingDate | 2013-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6cbab166a0fcd8d6708efc17ca0b477 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c35940f9eaf654c56e4de3b3bed183b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bfc1894ebc2a7378d02ff1c06a4dff6c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe62c6f008e3f7d29bb1dd9f28f2a59d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c64c601c0da21dde606c86d400ec4ff |
| publicationDate | 2015-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103214359-B |
| titleOfInvention | Method for preparing curcumin oligomer |
| abstract | The invention discloses a method for preparing curcumin oligomer. The method is characterized by comprising the following steps of: weighing 0.1844g of curcumin; adding 10ml of acetone, and stirring at room temperature till the mixture is completely dissolved; starting magnetic stirring for 5min under nitrogen protection conditions, and dropwise adding an oxidant, wherein in the dropwise adding process, the solution color turns into brownish black from orange yellow; raising the temperature of an oil bath to 50 DEG C under nitrogen protection conditions, and carrying out reflux reaction for 2 hours; continuing stirring and reacting at room temperature; tracking reaction by using thin layer chromatography, wherein the used developing solvent is chloroform and anhydrous ethanol in the ratio of 9.3: 0.7; stopping reacting two days later; carrying out rotary evaporation and recycling a solvent; separating reactants by using column chromatography, wherein leaching solution is a mixture of petroleum ether, ethyl acetate and anhydrous ethanol in the ratio of 6:3:1; and collecting eluate, and carrying out rotary evaporation to obtain a black solid product. |
| priorityDate | 2013-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.