http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2210871-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_37b6263b75377d4dae467974a791d1f2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-68 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-38 |
| filingDate | 2002-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e4cbca17d55c51f7126bdaad32c980e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d51dfdd70a4c4b6e6c21628b847532d3 |
| publicationDate | 2010-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2210871-A1 |
| titleOfInvention | Process for preparing 4-aminodiphenylamines |
| abstract | The invention pertains to a method of producing 4-aminodiphenylamine or substituted derivatives thereof comprising the steps of: n(a) bringing an aniline or aniline derivative selected from the group consisting of formanilide, phenylurea, carbanilide and thiocarbanilide, or from the group consisting of 2-methoxyaniline, 4-methoxyaniline, chloroaniline, p-toluidine, 4-nitroaniline, 3-bromoaniline, 3-bromo-4-aminotoluene, p-aminobenzoic acid, 2, 4-diaminotoluene, 2,5-dichloroanitine, 1, 4-phenylene diamine, 4, 4'-methylene aniline, 1,3,5-triaminobenzene, and mixtures thereof, and nitrobenzene or nitrobenzene derivative selected from the group consisting of o-and m-methylnitrobenzene, o- and m-ethylnitrobenzene, o- and m-methoxynitrobenzene, and mixtures thereof into reactive contact; n(b) obtaining a 4-aminodiphenylamine intermediate product by reacting the aniline or aniline derivative and nitrobenzene or nitrobenzene derivative in the presence of a mixture comprising an organic quaternary ammonium base, an inorganic salt or a metal organic salt, or mixtures thereof, and air, and n(c) reducing the 4-aminodiphenylamine intermediate product of step (b) to produce 4-aminodiphenylamine thereof of step (c) to an alkylated derivative of the 4-aminodiphenylamine or substituted derivatives thereof; and n(d) optionally, reductively alkylating the 4-aminodiphenylamine or substituted derivatives product of betaine and a strong inorganic base. |
| priorityDate | 2001-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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