http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2459803-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_10624371f1153b089c9ee128f953295a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-51 |
| filingDate | 2011-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7569ae3cc98435b9c5226adde259602c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1256a0216cf407898957f53fde236393 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6b128ed070dd5a8e3dd75ff9848fa56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a0c177a8e75879756da1d46e3ee52c3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31812274e495c955843245f327f9f002 |
| publicationDate | 2012-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2459803-C2 |
| titleOfInvention | METHOD OF PRODUCING 4,4'-(m-PHENYLENEDIOXY)DIPHTHALONITRILE |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to chemistry, specifically to an improved method of producing 4,4'-(m-phenylene-dioxy)diphthalonitrile (tetranitrile P) of formula I, which can be used as a monomer in synthesis of polyhexazocylanes and polyphthalocyanines, as well as a semi-product in synthesis of polyether imides. The method involves, for example, reaction of 4-nitrophthalonitrile and resorcinol in the medium of an aprotic dipolar solvent in the presence of a base at 80-90°C in 1 hour. The starting compounds - 4-nitrophthalonitrile and resorcinol - are dissolved in N,N-dimethylacetamide and a solution of sesquihydrate potassium carbonate K 2 CO 3 ·1.5H 2 O in water is added to the obtained solution. The residue of the end tetranitrile P I separated from the reaction mass is then washed on a filter with an aliphatic alcohol selected from a group comprising methanol or ethanol or 2-propanol. n EFFECT: method enables to obtain tetranitrile P of higher purity with high output. n 2 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2708399-C1 |
| priorityDate | 2011-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.