http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S54148786-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-20 |
| filingDate | 1978-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa5b7a37fbd8338c31a1bb294d40c41f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24805c539f12d31cd6d791cb20a40e3c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1cb8405c167299499a84c67ddd37a5b4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f289b6d17d89c5080fdcb172519aa452 |
| publicationDate | 1979-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S54148786-A |
| titleOfInvention | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- hydroxypyrazole |
| abstract | PURPOSE: To obtain the title compound useful as herbicides in one stage in high yield, by reacting 1,3-dimethyl-5-pyrazolone with 2,4-dichlorobenzoyl chloride. n CONSTITUTION: One mole of 1,3-dimethyl-5-pyrazolone is reacted with 2,4-dichlorobenzoyl chloride in the presence of 1W4 moles of an alkali metal carbonate in a solvent, e.g. a cyclic ether or ≥4C alcohol to give a 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole which exists in various tautomers of formula. THF, tert-butanol, or tert-amyl alcohol, is preferred as the solvent. K 2 CO 3 or Na 2 CO 3 is preferred as the carbonate. n COPYRIGHT: (C)1979,JPO&Japio |
| priorityDate | 1978-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.