http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100604591-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-51 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-38 |
| filingDate | 1999-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2006-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100604591-B1 |
| titleOfInvention | Method for preparing 4-aminodiphenylamine |
| abstract | The present invention adjusts the amount of water to base so that the molar ratio of water to filled base is in the range of about 4: 1 or more when the coupling reaction is initiated and about 0.6: 1 or more when the coupling reaction is terminated. Optionally reacting optionally substituted aniline with optionally substituted nitrobenzene to produce optionally substituted 4-nitrodiphenylamine and / or 4-nitrosodiphenylamine and / or salts thereof Regarding the method for preparing 4-aminodiphenylamine substituted withn n n The hydrogenation reaction takes place after the coupling reaction, wherein the coupling reaction product is hydrogenated in the presence of the catalyst for the hydrogenation reaction and the added water such that the molar ratio of the total water to base is at least about 4: 1 at the end of the hydrogenation,n n n An aqueous phase and an organic phase are obtained, and 4-aminodiphenylamine optionally substituted from the organic phase is recovered. |
| priorityDate | 1998-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 117.