http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1414782-A1
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_37b6263b75377d4dae467974a791d1f2 |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-36 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-68 |
filingDate | 2002-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d51dfdd70a4c4b6e6c21628b847532d3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e4cbca17d55c51f7126bdaad32c980e |
publicationDate | 2004-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | EP-1414782-A1 |
titleOfInvention | Process for preparing 4-aminodiphenylamines |
abstract | The invention is directed to a method of producing 4-aminodiphenylamine or substituted derivatives thereof comprising the steps of bringing an aniline or aniline derivative and nitrobenzene derivative into reactive contact; and reacting the aniline and nitrobenzene in a confined zone at a suitable time and temperature, in the presence of a mixture comprising a strong base and a suitable phase transfer catalyst and an oxidant to produce a 4-aminodiphenylamine intermediate product. Alternatively, the mixture may comprise an inorganic salt or metal organic salt having a cation that would be a suitable cation of a strong inorganic base, and an oxidant and organic base, the mixture not including a reaction product of betaine and a strong inorganic base. The aminodiphenylamine intermediate product is reduced to produce 4-aminodiphenylamine or substituted derivatives thereof. |
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
Total number of triples: 383.