http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04120059-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1990-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_785382b23e58e5ff8613ffdf35a805a3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b261ebeda34edbd2aceaa087da0132f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_290b2eff71739821bed5549c60eeaf69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cc0cfacdf3975a73dacbc732070b039 |
| publicationDate | 1992-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04120059-A |
| titleOfInvention | Production of substituted pyrazole-4-carboxylic acid |
| abstract | PURPOSE: To obtain the subject compound known as a useful intermediate for an acid amide compound which is an active component of a fungicide for agricultural and horticultural use, at a low cost, by reacting a substituted pyrazole-4- carbaldehyde with sodium chlorite in the presence of hydrogen peroxide and a phase-transfer catalyst. n CONSTITUTION: The objective compound of formula II can be produced by reacting a compound of formula I (R 1 is methyl, ethyl or CF 3 ) with sodium chlorite in the presence of hydrogen peroxide and a phase-transfer catalyst (e.g. tetrabutylammonium bromide and crown ether) preferably in a solvent at pH2-6 and a temperature between 0°C and the boiling point of the solvent, preferably 10-70°C. Preferably, the amount of sodium chlorite and hydrogen peroxide is 1-2 equivalent each and that of the phase-transfer catalyst is 0.001-0.1 equivalent per 1 equivalent of the compound of formula I. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1990-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.