http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103570518-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-84 |
| filingDate | 2012-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103570518-B |
| titleOfInvention | One prepares the method for 2,4-dimethoxy-acetophenone |
| abstract | The present invention relates to a kind of preparation method that can be used for preparing medicine intermediate 2, the 4-dimethoxy-acetophenone of flavonoid medicine.With 1,3-dimethoxy benzene for raw material, add solvent, Lewis acid, drip acetonitrile, pass into dry hydrogen chloride gas, filter and obtain solid, solid water solves target compound.This preparation method does not use ether to make solvent, and does not use trifluoromethanesulfonic acid, is the preparation method that a kind of production cost is lower and simple to operate, safer, have industrial production value. |
| priorityDate | 2012-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.