http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56167650-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e43b4ca6b41ce9f54c9a895d474c81a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-72 |
| filingDate | 1980-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87f692bf4509ba7bcb2cc5eb7facf50d |
| publicationDate | 1981-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56167650-A |
| titleOfInvention | Preparation of diphenylamine |
| abstract | PURPOSE: To obtain the titled compound of high purity useful as an intermediate for a coloring matter of pressure-sensitive paper, by the reaction of an acylaminophenol compound with an inexpensive di- or trichlorobenzene in the presence of an acid binding agent and a Cu catalyst, followed by the hydrolysis. n CONSTITUTION: An acylaminophenol compound of formula I (R 1 is methyl or ethyl) is reacted with a di- or trichlorobenzene of formula II (n is 1 or 2) at 150W 250°C for 24W40hr in the presence of an acid binding agent, e.g. K 2 CO 3 or Na 2 CO 3 , and a Cu catalyst, e.g. Cu powder or cupric oxide, to give diphenylamine or formula III, which is then hydrolyzed to give the titled compound of formula IV. n COPYRIGHT: (C)1981,JPO&Japio |
| priorityDate | 1980-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.