http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2547261-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_86fb1bffc8d2b10671a73f8684e4acd5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D235-18 |
| filingDate | 2013-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ce41aa430070149b50c93890a4d35ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d4e1cadc01814ee9192bc5c41a5891e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf91fdc1248f3fdd25fa459cdbb3a792 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3af47d5d771906f8d6dbe2b3f6b55435 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_870a1cf532edaa1e5eb67e06141f9aec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23c9c0526b130449e30df9268580e7f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bafbce49224bfbb5fea60a2710fdb164 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b91a2067f41ac5ffd75ea41f287bbea |
| publicationDate | 2015-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2547261-C2 |
| titleOfInvention | Method of obtaining 5(6)-amino-2-(4-aminophenyl)benzimidazole from 2',4,4'-trinitrobenzanilide |
| abstract | FIELD: chemistry. n SUBSTANCE: invention deals with method of obtaining 5(6)-amino-2-(4-aminophenyl)benzimidazole by catalytic hydration of 2',4,4'-trinitrobenzanilide in medium of amide solvent from the series: dimethylformamide, dimetylacetamide, N-methylpyrrolidone, with separation of formed 2',4,4'-triaminobenzanilide from hydrolysate in form of monosulphate salt with further cyclodehydration of monosulphate salt of 2',4,4'-triaminobenzanilide with heating in aqueous sulphuric acid, separation of sulphate salt of 5(6)-amino-2-(4-aminophenyl)benzimidazole by its crystallisation and filtration and neutralisation with base, characterised by the fact that separation of monosulphate salt of 2',4,4'-triaminobenzanilide is carried out in presence of lower aliphatic alcohol or acetone and cyclodehydration is carried out in presence of activated coal. n EFFECT: elaborated is novel method of obtaining compound, characterised by higher productivity and low expenditures on reagents. n 2 cl, 1 dwg, 4 tbl, 6 ex |
| priorityDate | 2013-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 81.