http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103709053-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C221-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C223-06 |
| filingDate | 2014-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103709053-B |
| titleOfInvention | A kind of method being prepared three (4-formylphenyl) amine by 4-formyl radical triphenylamine |
| abstract | The invention provides a kind of method being prepared three (4-formylphenyl) amine by 4-formyl radical triphenylamine.The method adds 4-formyl radical triphenylamine and DMF in reaction vessel, and-5 DEG C ~ 0 DEG C dropwise drips POCln 3 , Nn 2 protect lower 88 DEG C ~ 93 DEG C reflux 11 ~ 13 hours; frozen water is poured in cooling into, and with NaOH neutralization, decompress filter, extraction, organic phase is washed, salt washes; with petroleum ether-ethyl acetate mixed solvent as leacheate, silica gel column chromatography is purified and is obtained product.The method fully can realize the recovery of the useless byproduct 4-formyl radical triphenylamine in tradition preparation three (4-formylphenyl) amine method, material is fully utilized, improves the ultimate yield of three (4-formylphenyl) amine. |
| priorityDate | 2014-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.