http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0281841-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-73 |
| filingDate | 1988-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7d7c20021e306f9e32ed6d955d6e297 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbdc3122df890e534db7d193c2b92b15 |
| publicationDate | 1988-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0281841-A1 |
| titleOfInvention | Process for preparation of 5-amino-4,6-dihalogenopyridines |
| abstract | The present invention relates to a process for the preparation of 5-amino-4,6-dihalopyridine derivatives of the formula I. in which R¹ represents hydrogen, -O-R⁷ or -NHR⁸, R² stands for hydrogen, halogen R³ is hydrogen, or together with R² is = O, R⁴ represents hydrogen or alkyl, R⁵ represents hydrogen, alkyl, haloalkyl, aryl, R⁷ for alkyl, R⁸ represents alkyl, cycloalkyl, aralkyl, aryl, heterocyclyl, which can optionally be substituted, R⁹ for acyl or hydrogen, Hal stands for halogen, is characterized in that one Compounds of formula II halogenated with hydrohalic acids, in the presence of oxidizing agents.n n n It also relates to the new 5-aminopyridines of the formula III and their manufacture. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0256420-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0256420-A2 |
| priorityDate | 1987-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 135.