| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20688220cab72ad01902ff5223732946 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C7-384
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D231-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C7-384
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-52 |
| filingDate |
1975-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1976-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93da30c6b98dd81b11d890aed096b872
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c0df465a429fdbdee6ae22bafc0b58f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b4682fe6c208b32d91e894b259335d0 |
| publicationDate |
1976-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4000156-A |
| titleOfInvention |
Preparation of 4-methyl-2-pyrazolin-5-ones |
| abstract |
A method is described for the preparation of a 1-substituted 4-methyl-2-pyrazolin-5-one by catalytic hydrogenation under pressure and simultaneous methylation by means of paraformaldehyde of the appropriate 1-substituted 2-pyrazolin-5-one in a medium of an inert organic solvent comprising ammonium acetate. |
| priorityDate |
1974-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |