http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1816118-A1
Outgoing Links
Predicate | Object |
---|---|
assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_67ddb426ec27b4566aa864c9a6ed9d1c |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-54 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-52 |
filingDate | 2004-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af130d618dd18cd1272e280aa6a431fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f7eb4bca18992da68f286e4efdd96f6 |
publicationDate | 2007-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | EP-1816118-A1 |
titleOfInvention | Process for producing 2,2'-bis(trifluoromethyl)-4,4'-diaminobiphenyl |
abstract | A process for producing 2,2'-bis (trifluoromethyl)-4,4'-diaminobiphenyl which is useful as a raw material for polyimide resin, etc.. nIn benzidine rearragement of 3,3'-bis(trifluoromethyl) hydrazobenzene in the presence of an inorganic acid such as sulfuric acid aqueous solution or concentrated hydrochloric acid, use of a water-immiscible organic solvent such as toluene as reaction solvent can increase the yield of the product. n3,3'-bis(trifluoromethyl) hydrazobenzene can be synthesized by reduction of m-nitrobenzotrifluoride. |
priorityDate | 2004-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.