http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0680954-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-22 |
| filingDate | 1995-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c21ccbb55ae3c3cf30499490443d534d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3711c41b33311c06598c8b372959e274 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_567d97e551071391e7195c7633c3296c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64bfa4f2ad5dd797ff83dddaa6028ef1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_322f43635c026e77826227fc68bdb6ed |
| publicationDate | 1995-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0680954-A2 |
| titleOfInvention | Process of preparation of 1-(Het)aryl-3-hydroxy pyrazoles |
| abstract | R für einen ggf. subst. aromatischen oder heteroaromatischen Rest steht, n 0, 1 oder 2 und R' eine unter den Umsetzungsbedingungen stabile Gruppe bedeutet, aus Propiolsäureestern der Formel II n n R'-C≡C-CO 2 R 1 (II) n nin denen R 1 für eine Alkyl-, Cycloalkyl- oder Arylgruppe steht, und (Het)arylhydrazinen der Formel III n n R-NH-NH 2 (III) n nin einem Lösungsmittel in Gegenwart einer Base, dadurch gekennzeichnet, daß man zunächst II und III in einem Lösungsmittel miteinander mischt und diese Mischung anschließend bei Temperaturen von 0°C bis 60°C mit der Base versetzt.Process for the preparation of 1- (het) aryl-3-hydroxy-pyrazoles of the formula I. in the R for a subst. aromatic or heteroaromatic radical, n 0, 1 or 2 and R ' means a stable group under the conditions of implementation, from propiolic acid esters of the formula II R'-C≡C-CO 2 R 1 (II) in which R 1 represents an alkyl, cycloalkyl or aryl group, and (het) arylhydrazines of the formula III R-NH-NH 2 (III) in a solvent in the presence of a base, characterized in that first II and III are mixed with one another in a solvent and this mixture is then mixed with the base at temperatures from 0 ° C. to 60 ° C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020094440-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011113884-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011026937-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7652057-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2881387-A1 |
| priorityDate | 1994-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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