http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104829455-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-343 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-25 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-343 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-716 |
| filingDate | 2015-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104829455-B |
| titleOfInvention | A kind of method for catalyzing and synthesizing trifluoroacetic ethyl acetoacetate |
| abstract | The invention discloses a kind of method for catalyzing and synthesizing trifluoroacetic ethyl acetoacetate, comprises the following steps：A divalence and trivalent metal salt mixed aqueous solution are mixed by () with NaOH and sodium carbonate mixed aqueous solution, make solution ph for after 8.5～10.5, aging, filter, dry, grind to obtain catalyst precarsor；B catalyst precarsor roasting that step (a) is obtained by (), cooling, are then added in the KF aqueous solution, stir, filter, wash and be vacuum dried, roasting is obtained catalyst；C catalyst that step (b) is obtained by () is 0.001～0.05 with ethyl acetate, Trifluoroacetic Acid Ethyl Ester in mass ratio：2～5：1,5～10h is reacted at 40～60 DEG C, rectifying, cooling obtain condensation product, add the mixed solution of formic acid and ethyl acetate again in the condensation product for obtaining, 0.5～3h, cooling is reacted at 30～55 DEG C, filter, filtrate decompression rectifying obtains trifluoroacetic ethyl acetoacetate.The present invention has the advantages that process is simple, high income, safety and environmental protection. |
| priorityDate | 2015-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.