http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009007297-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d123e76a98aad8db100e9f8c62e0648 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C217-90 |
| filingDate | 2007-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f2db6f9c49cb3668d5a90679455b40d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a6019e1163ad1141bc29b53c28fb2e1 |
| publicationDate | 2009-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009007297-A |
| titleOfInvention | Method for producing 3,4'-diaminodiphenyl ether |
| abstract | The present invention relates to a method for producing high-quality diaminodiphenyl ether with low energy and high yield by reducing the amount of active ingredients accompanying an inorganic salt formed by a condensation reaction when producing 3,4'-diaminodiphenyl ether. It is to provide. The object of the present invention is to separate 3-aminophenol and 4-chloronitrobenzene in an aprotic polar solvent in the presence of a basic compound and separate an inorganic salt produced by the condensation reaction. Thereafter, a reaction for further reducing the nitro group is carried out to produce 3,4'-diaminodiphenyl ether, wherein the inorganic salt produced by the condensation reaction is separated, and the weight of the inorganic salt is 1.0-3. After washing the inorganic salt with 0 times by weight of the water-insoluble solvent to obtain a washing liquid, the inorganic salt washed with the water-insoluble solvent is dissolved in water, and the inorganic salt-containing non-layer separated into water is separated. Obtaining a water-soluble solvent, condensing a part of the solute of the cleaning liquid or the total amount of the solute of the cleaning liquid and a part of the solute of the inorganic salt-containing water-insoluble solvent or the total amount of the solute of the inorganic salt-containing water-insoluble solvent It is added during the reaction. This can be solved by a method for producing 3,4′-diaminodiphenyl ether. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111072503-A |
| priorityDate | 2007-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.