http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0253776-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-16 |
| filingDate | 1988-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8dd130be477fdd2973f54a5f90775bb5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f6e05fecca4a84cbc0332db643e8a49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bcda7d4c72d1fed1c3ee7f504f81485c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80a289fe5cb62962ec91cd2702b21bf4 |
| publicationDate | 1990-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0253776-A |
| titleOfInvention | 4-halogeno-5-pyrazolecarboxylic acid derivative |
| abstract | NEW MATERIAL:A compound of formula I (R 1 is 1-4C alkyl, benzyl or difluoromethyl; R 2 is 1-4C alkyl or cyclopropyl; R 3 is H or 1-5C alkyl; X is halogen; but when both R 1 and R 2 are metyl, R 3 is 3-5C alkyl). n EXAMPLE: 1-Methyl-3-ethyl-4-bromo-5-pyrazolecarboxylic acid ethyl ester. n USE: An intermediate for drugs and insecticidal and acaricidal agents. n PREPARATION: A compound of formula II (Z is 1-5C alkyl) is reacted with a halogenating agent in a solvent such as CCl 4 or benzene or in the absence of a solvent at 0°C - the refluxing temperature of the solution to provide the compound of formula I wherein R 3 is alkyl. The resultant compound of formula I is further hydrolyzed in the presence of an alkali in water or an alcohol at 20-100°C to provide the compound of formula I wherein R 3 is H. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0757987-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012059048-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5817829-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103044331-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103044331-A |
| priorityDate | 1988-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.