http://rdf.ncbi.nlm.nih.gov/pubchem/patent/PL-183826-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46830b651781109964ac264c9d707376 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D401-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D401-02 |
| filingDate | 1996-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da5e754974e88a5d727b70cb411cc2c0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c54fe4ecb5216625a085135353a4bf55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aafe9f8e13387a4b8e6a7fc018d586f5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b69ff77cf1d29f06681de95ed387c480 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af364606962e73451406d9bf3627d822 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6dcd0a07589664fe7724ba1b0c82e5a2 |
| publicationDate | 2002-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | PL-183826-B1 |
| titleOfInvention | Preparation method of 5-amino- [3,4'-bipyridin] -6 (1H) -one |
| abstract | 1 · Method for the production of 5-amino- [3,4'-bipyridin] -6 (1H.) -One by hydrolysisn5-cyano- [3,4'-bipyridin] -6 (1H) -one with sulfuric acid followed by rearrangementnHoffman of the thus obtained 5-carbamoyl- [3,4'-bipiiydin] -6 (1H) -one in the presence of hypochloritenor sodium or potassium hypobromite in a sodium or potassium hydroxide medium, characterizednthe reaction mixture is poured onto ice after hydrolysis to give a precipitate of sulphaten5-carbamoyl- [3,4'-bipyridin] -6 (1H) -one which is neutralized with sodium hydroxidenor potassium, 5-carbamoyl- [3,4'-bipyr / dyne] -6 (1H) -one is filtered off, filtered wet precipitatenadded to a solution of sodium or potassium hypochlorite or hypobromite in a hydroxide mediumnsodium or potassium, respectively, at a temperature of 0-15 ° C, and the suspension thus obtainednare introduced into the sodium or potassium hydroxide solution, respectively, preferably at a concentrationnabout 5N, heated to 60-80 ° C, and then the mixture is coolednand the precipitated sodium or potassium salt of 5-amino- [3,4'-bipyridin] -6 (1H) -nonu, which is converted in a known manner to the free 5-amino- [3,4'-bipyridin] -6 (1H) -one |
| priorityDate | 1996-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.