http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2429208-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6124408d411842140c28025a16a30387 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D237-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D237-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D237-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-54 |
| filingDate | 1979-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1980-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2429208-A1 |
| titleOfInvention | 5-AMINO-4-CHLORO-2-PHENYL-3 (2H) -PYRIDAZINONE ANALOGUE FREE 5-CHLORO-4-AMINO, AS A SELECTIVE HERBICIDE |
| abstract | Process for obtaining 5-amino-4-chloro-2-phenyl-3 (2H) -pyridazinone free from the 4-amino-5-chloro isomer. We start with a technical “Pyrazon”, a mixture of the two isomers, and the mixture is treated with a strong mineral acid (at least 30% hydrochloric or at least 60% sulfuric). The 4-amino-5-chloro isomer dissolves and a suspension of the 5-amino-4-chloro isomer is obtained, which is filtered. Application to the preparation of selective weedkillers for beetroot. |
| priorityDate | 1978-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.