http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106543096-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/C07D265-12 |
| filingDate | 2016-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106543096-B |
| titleOfInvention | A kind of method that catalysis prepares naphtho- oxazines ketone derivatives |
| abstract | The invention discloses a kind of methods that catalysis prepares naphtho- oxazines ketone derivatives, belong to technical field of organic synthesis.Aromatic aldehyde in preparation reaction, the molar ratio of beta naphthal and urea is 1:1:1, the mole (with the molar amount of the acidic ion liquid of load) of nano silica supported acidic ionic-liquid catalyst is the 8~13% of aromatic aldehyde used, the volume that 80% ethanol water of reaction dissolvent (volume ratio) is counted using milliliter as aromatic aldehyde by mM in terms of 5~8 times of mole, 40~90min of back flow reaction, it filters for the first time while hot after reaction, filtrate is cooled to room temperature, pulverize the solid of precipitation, second of suction filtration, naphtho- oxazines ketone derivatives are obtained after filter residue vacuum drying.The present invention with using other acidic ionic liquid catalysts preparation method compared with, have catalyst loss amount in recycling is less, the features such as number is more, and purification of products is simple and convenient can be recycled, convenient for industrialization large-scale application. |
| priorityDate | 2016-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.